我的实战项目：基于SSM的班级周报系统(周报填写、生成多表)
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2024-03-20 11:37:46
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不积硅步，无以至千里。
之前学习了基于IDEA的SSM项目的搭建，然后通过日常学习生活的需求，本人跟自己的小伙伴做了一个周报系统，主要是收集班级学生一周的学习内容，然后汇总到一张表格，并且通过POI插件生成表格，表格内容里存在所有学生的周报信息，要求衔接之前周报内容，明确周数周次信息，数据库设置事件，新的一周开始，自动添加新的周次信息
1、项目开始前的环境准备：
开发工具：IDEA 2019.3.1
JDK ： 1.8
Mysql : 5.1.41(部署在阿里云ESC服务器，也可以放在本地，看需求)
Maven版本： 3.6.3
Tomcat ： 8.5
2. 新建数据表
（1）user表：存储学生信息，id为学号，username为学生姓名，password为登录密码，sex性别，major为专业信息，而team是在班级分组的组别。
（2）weekinfo表，存储学生的所有周报内容，id外键绑定user表的id，week是新建周报的周数，time是上一次提交周报修改事件，content是个人周报内容，tcontent是小组周报内容，由组长编写，区别组长和组员的依据就是组长的id尾数为001，而limits是每周的起始日期，按照星期一到星期天格式显示
3. 创建Maven项目
4. 添加pom.xml 依赖
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>top.weidaboy</groupId>
<artifactId>MySSM</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>MySSM Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- spring版本号 -->
<spring.version>4.3.6.RELEASE</spring.version>
<!-- mybatis版本号 -->
<mybatis.version>3.5.1</mybatis.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- poi需要的依赖-->
<!-- <dependency>-->
<!-- <groupId>org.apache.poi</groupId>-->
<!-- <artifactId>poi</artifactId>-->
<!-- <version>4.0.1</version>-->
<!-- </dependency>-->
<!-- 数据导出到xlsx -->
<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.17</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.17</version>
</dependency>
<!-- 阿里数据库连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.6</version>
</dependency>
<!-- jstl-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 添加依赖就可以了-->
<!-- java ee -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<!-- 实现slf4j接口并整合 -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.2</version>
</dependency>
<!-- JSON -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.7</version>
</dependency>
<!-- 数据库 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.41</version>
<scope>runtime</scope>
</dependency>
<!-- <!– 数据库连接池 –>-->
<!-- <dependency>-->
<!-- <groupId>com.mchange</groupId>-->
<!-- <artifactId>c3p0</artifactId>-->
<!-- <version>0.9.5.2</version>-->
<!-- </dependency>-->
<!-- MyBatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis/spring整合包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!--EasyPoi导入导出-->
<!-- easypoi -->
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>3.2.0</version>
</dependency>
<!-- 还需要添加依赖：-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.10</version>
</dependency>
</dependencies>
<build>
<finalName>MySSM</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
<!--配置文件放行，不配置的话下面的文件不会被打包起来，导致错误-->
<resources>
<resource>
<directory>src/main/java</directory>
<filtering>false</filtering>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>
5. 创建entity类
（1）User类：
public class User {
private Integer id;
private String username;
private String password;
private String sex;
private String major;
private int team;
/*省去get、set方法以及toString方法重写*/
}
（1）Weekinfo类：
public class Weekinfo {
private Integer id; //工号
private Integer week; //周数
private String time; //时间
private String content; //周报内容
private String tcontent;//小组内容
private String limits; //时间范围
/*省去get、set方法以及toString方法重写*/
}
6. 创建dao类
（1） UserDao类：
public interface UserDao {
//方法名称、参数列表的参数都要于XML文件一致
User queryUserByID(Integer id);
//检查用户账号、密码是否一致
User queryUserByIDandPassword(@Param("id") Integer id, @Param("password")String password);
//获取所有用户信息
List<User> allUser();
//修改用户密码
void changePassword(@Param("id") Integer id, @Param("password")String password);
//查询指定组员的所有信息或不指定
List<User> queryUserAll(String team);
}
2、WeekinfoDao类：
public interface WeekinfoDao {
/**
* 通过ID查询到用户信息周报信息
* @param id
*/
public Weekinfo findWeeklyById(Integer id);
/**
* 通过ID和周数确定某一周周报内容
* @param id
* @param week
* @return
*/
public Weekinfo findWeeklyByIdAndWeek(@Param("id") Integer id, @Param("week")Integer week);
/**
* 通过ID和周数确定这一周是否有周报内容
* @param id
* @param week
* @return
*/
public boolean isExiste(@Param("id")Integer id,@Param("week")Integer week);
/**
* 修改某周周报内容
* @param weekinfo
*/
public void updateWeekly(Weekinfo weekinfo);
/**
* 获取所有周报周数
* @return
*/
public List<Integer> allWeeks(Integer id);
/**
* 通过ID查询到用户周报信息
* @param
*/
public List<Weekinfo> byIdAndWeek(Integer id);
/**
* 添加新的一周周报内容
* @param weekinfo
*/
public void addWeekly(Weekinfo weekinfo);
/**
* 删除某周周报内容
* @param id
* @param week
*/
public void deleteWeekly(@Param("id")Integer id,@Param("week")Integer week);
/**
* 组长更新周报
* @param weekinfo
*/
public void updateTeamWeekly(Weekinfo weekinfo);
/**
* 获取所有用户周报内容
* @return
*/
public List<Weekinfo> allWeekly();
/**
* 查询所有周数
* @return List<Integer>
*/
public List<Integer> queryWeeks();
/**
* 获取指定周数或不指定的所有信息
* @param week
* @return
*/
public List<Weekinfo> queryWeekInfoAll(String week);
/**
* 获取最新周数
* @return
*/
public int MaxWeek();
}
7. 在resource文件下创建Mapper文件，给dao文件下的类映射端口
(1)UserDao.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 设置为UserDao接口方法提供sql语句配置 -->
<mapper namespace="top.weidaboy.dao.UserDao">
<!-- org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)问题，-->
<!-- 即在mybatis中dao接口与mapper配置文件在做映射绑定的时候出现问题，-->
<!-- 简单说，就是接口与xml要么是找不到，要么是找到了却匹配不到。-->
<select id="queryUserByID" resultType="top.weidaboy.entity.User" parameterType="Integer">
SELECT * FROM user WHERE id = #{id}
</select>
<!-- 解决方案：【resultMap修改为resultType】-->
<select id="queryUserByIDandPassword" resultType="top.weidaboy.entity.User">
select * from user where id = #{id} and password = #{password}
</select>
<!-- 返回所有用户信息-->
<select id="allUser" resultType="top.weidaboy.entity.User">
select * from user
</select>
<!-- 修改密码-->
<update id="changePassword">
update user set password = #{password} where id= #{id}
</update>
<!-- 查询指定组员所有信息-->
<select id="queryUserAll" resultType="top.weidaboy.entity.User" parameterType="java.lang.String">
select * from user where 1 = 1
<if test="_parameter!=null and _parameter!=''">
and team = #{team}
</if>
</select>
</mapper>
(2) WeekInfoDao.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 设置为WeekInfoDao接口方法提供sql语句配置 -->
<mapper namespace="top.weidaboy.dao.WeekinfoDao">
<!-- org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)问题，-->
<!-- 即在mybatis中dao接口与mapper配置文件在做映射绑定的时候出现问题，-->
<!-- 简单说，就是接口与xml要么是找不到，
要么是找到了却匹配不到。-->
<!-- 解决方案：【resultMap修改为resultType】-->
<!-- 通过id和周数返回内容某周内容-->
<select id="findWeeklyByIdAndWeek" resultType="top.weidaboy.entity.Weekinfo" >
SELECT * FROM weekinfo WHERE id = #{id} and week = #{week}
</select>
<!-- 通过ID和周数确定是否有该周报-->
<select id="isExiste" resultType="boolean" >
SELECT * FROM weekinfo WHERE id = #{id} and week = #{week}
</select>
<!-- 返回所有周数:类型为所有周数的数组-->
<select id="allWeeks" resultType="Integer" parameterType="Integer" >
select week from weekinfo where id= #{id} order by week desc
</select>
<!-- 获取登录用户所有周报信息-->
<!-- 获得weekinfo表所有信息 周数降序,ID降序-->
<select id="allWeekly" resultType = "top.weidaboy.entity.Weekinfo">
select * from weekinfo order by week Desc ,id asc ;
</select>
<!-- 删除周报-->
<delete id="deleteWeekly" >
delete from weekinfo where id = #{id} and week = #{week}
</delete>
<!-- 添加新的周报-->
<insert id="addWeekly" parameterType="top.weidaboy.entity.Weekinfo">
insert into weekinfo(id,week,time,content) values(#{id},#{week},#{time},#{content})
</insert>
<!-- 修改组长周报-->
<update id="updateTeamWeekly" parameterType="top.weidaboy.entity.Weekinfo">
update weekinfo set tcontent=#{tcontent},time=#{time} where id = #{id} and week = #{week}
</update>
<!-- 修改个人周报-->
<update id="updateWeekly" parameterType="top.weidaboy.entity.Weekinfo">
update weekinfo set content=#{content},time=#{time} where id = #{id} and week = #{week}
</update>
<!-- 获取周数 -->
<select id="queryWeeks" resultType="Integer">
select week from weekinfo group by week
</select>
<!-- 获取weekInfo表的所有信息 -->
<select id="queryWeekInfoAll" resultType="top.weidaboy.entity.Weekinfo" parameterType="java.lang.String">
select * from weekinfo where 1 = 1
<choose>
<when test="_parameter!=null and _parameter!=''">
and week = #{week} order by week desc, id asc
</when>
<otherwise>
order by week desc, id asc
</otherwise>
</choose>
</select>
<!-- 最大周数 接口名称一定要一致啊！！！！！-->
<select id="MaxWeek" resultType="Integer">
SELECT MAX(WEEK) FROM weekinfo;
</select>
<!-- 测试专用-->
<insert id="insertWeeklyTest" parameterType="top.weidaboy.entity.Weekinfo">
insert into weekinfo(id,week,time,content,tcontent,limits)values(#{id},#{week},#{time},#{content},#{tcontent},#{limits})
</insert>
<!-- 修改组长周报-->
<update id="updateTeamWeeklyTest" parameterType="top.weidaboy.entity.Weekinfo">
update weekinfotest set tcontent=#{tcontent},
time=#{time} ,limits=#{limits} where id = #{id} and week = #{week}
</update>
<!-- 修改个人周报-->
<update id="updateWeeklyTest" parameterType="top.weidaboy.entity.Weekinfo">
update weekinfotest set content=#{content},
time=#{time},limits=#{limits} where id = #{id} and week = #{week}
</update>
</mapper>
8. 在resource文件下创建springmybatis.xml整合文件，通过spring去管理mybatis
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 扫描service包下所有使用注解的类型 -->
<context:component-scan base-package="top.weidaboy.service"/>
<!-- 配置数据库相关参数properties的属性：${url} -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 阿里 druid 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
<!-- 数据库基本信息配置 -->
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="filters" value="${jdbc.filters}"/>
<!-- 最大并发连接数 -->
<property name="maxActive" value="${jdbc.maxActive}"/>
<!-- 初始化连接数量 -->
<property name="initialSize" value="${jdbc.initialSize}"/>
<!-- 配置获取连接等待超时的时间 -->
<property name="maxWait" value="${jdbc.maxWait}"/>
<!-- 最小空闲连接数 -->
<property name="minIdle" value="${jdbc.minIdle}"/>
<!-- 最大空闲连接数 -->
<property name="maxIdle" value="${jdbc.maxIdle}"/>
<!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="${jdbc.timeBetweenEvictionRunsMillis}"/>
<!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="${jdbc.minEvictableIdleTimeMillis}"/>
<property name="validationQuery" value="${jdbc.validationQuery}"/>
<property name="testWhileIdle" value="${jdbc.testWhileIdle}"/>
<property name="testOnBorrow" value="${jdbc.testOnBorrow}"/>
<property name="testOnReturn" value="${jdbc.testOnReturn}"/>
<property name="maxOpenPreparedStatements" value="${jdbc.maxOpenPreparedStatements}"/>
<!-- 超过时间限制是否回收 -->
<property name="removeAbandoned" value="${jdbc.removeAbandoned}"/>
<!-- 1800 秒，也就是 30 分钟 -->
<property name="removeAbandonedTimeout" value="${jdbc.removeAbandonedTimeout}"/>
<!-- 关闭 abanded 连接时输出错误日志 -->
<property name="logAbandoned" value="${jdbc.logAbandoned}"/>
</bean>
<!-- 配置SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 扫描entity包 使用别名 -->
<property name="typeAliasesPackage" value="top.weidaboy.entity"/>
<!-- 扫描sql配置文件:mapper需要的xml文件 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
</bean>
<!-- mapper扫描器 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="top.weidaboy.dao"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置基于注解的声明式事务 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
9. 在resource文件下创建springmvc文件，处理前端请求，后端数据处理转发
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- 扫描web相关的bean -->
<context:component-scan base-package="top.weidaboy.controller"/>
<!-- 开启SpringMVC注解模式 -->
<mvc:annotation-driven/>
<!-- 静态资源默认servlet配置 -->
<mvc:default-servlet-handler/>
<mvc:resources mapping="/static/**" location="/WEB-INF/module/" />
<!-- 配置jsp 显示ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<!-- 设置访问web-inf下的静态资源文件，减轻服务器加载负担，限制用户通过url直接访问到jsp文件
在web-inf文件下用转发forword 不要用重定向redirect -->
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
10. 在resource文件下创建jdbc.properties，配置Mysql数据库驱动，阿里云数据库连接池
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://IP地址/数据库名称?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=登录密码
jdbc.filters=stat
jdbc.maxActive=50
jdbc.initialSize=1
jdbc.maxWait=60000
jdbc.minIdle=10
jdbc.maxIdle=15
jdbc.timeBetweenEvictionRunsMillis=60000
jdbc.minEvictableIdleTimeMillis=300000
jdbc.validationQuery=SELECT 'x'
jdbc.testWhileIdle=true
jdbc.testOnBorrow=false
jdbc.testOnReturn=false
jdbc.maxOpenPreparedStatements=20
jdbc.removeAbandoned=true
jdbc.removeAbandonedTimeout=1800
jdbc.logAbandoned=true
11. 在controller文件下新建Controller类，Controller类可以决定前端请求要显示哪一个View，同时也是负责定义和调用Model。
（1）UserController：
@Controller
@RequestMapping("")
public class UserController {
@Resource
private UserService userService;
@Resource
private WeekinfoService weekinfoService;
private Enumeration enumeration;
public WeekinfoService getWeekinfoService() {
return weekinfoService;
}
public void setWeekinfoService(WeekinfoService weekinfoService) {
this.weekinfoService = weekinfoService;
}
public UserService getUserService() {
return userService;
}
public void setUserService(UserService userService) {
this.userService = userService;
}
@RequestMapping("/UserByID")
//根据工号获得学员信息
public ModelAndView queryUserByID(@Param("id") Integer id) {
User user = this.userService.queryUserByID(id);
ModelAndView mv = new ModelAndView("success");
mv.addObject(user);
return mv;
}
/*
* org.springframework.web.util.NestedServletException:
* Request processing failed; nested exception is java.lang.NullPointerException
* 错误出现的原因：处理该请求的方法所需要的部分参数在请求时没有值，导致空指针错误；
解决方法一：在第一次访问该页的请求，或者说访问出错的页请求链接上加上处理该请求的方法所需的参数；
解决方法二：配置两个处理请求的方法，一个不需要参数（用于第一次访问），一个不需要参数，用于处理有参数的请求。
* */
@RequestMapping("/UserLogin")
//根据工号获得学员信息
public String queryUserByIDandPassword(@Param("id") Integer id,
@Param("password") String password,
Model map,
HttpSession session,
Map<String, Object> error) {
if(id==null || password ==null){
map.addAttribute("errors", "账号或者密码不能为空");
return "../../newlogin";
}
System.out.println("id:" + id + " Password:" + password);
User user = userService.queryUserByIDandPassword(id, password);
System.out.println(user);
if (user != null) {
//如果是管理员
if(user.getId() == 20200001 ){
//转发到管理员界面
List<Integer> weeks = weekinfoService.queryWeeks();
map.addAttribute("weeks",weeks);
return "Administrator";
}
map.addAttribute("user", user);
//添加到session
session.setAttribute("user", user);
//设置活动周期 1小时
session.setMaxInactiveInterval(50 * 60);
return "forward:/refresh";
} else {
map.addAttribute("errors", "账号或者密码错误");
return "../../newlogin";
}
}
/**
* 修改密码
*/
@RequestMapping("/changePassword")
public String changePassword(@Param("id") Integer id, @Param("password") String password, Model map,
HttpSession session, Map<String, Object> error){
//1、修改密码
userService.changePassword(id, password);
//2、
error.put("changePassword","ok");
return "UserInterface";
}
/**
* 刷新界面
*/
@RequestMapping("/refresh")
public String refreshFace(HttpSession session, HttpServletRequest request){
enumeration = session.getAttributeNames();//获取session中所有的键值对
String FileName="";
User user = (User)session.getAttribute("user");
//所有周数数组
List<Integer> integers = weekinfoService.allWeeks(user.getId());
//把周数插入到要返回的周报内容
List<Weekinfo> weekinfos = new ArrayList<Weekinfo>();
//遍历5周
for(int i = 0 ; i<5 ; i++) {
Weekinfo weekinfo = weekinfoService.findWeeklyByIdAndWeek(user.getId(), integers.get(i));
weekinfos.add(weekinfo);
}
session.setAttribute("weekinfos", weekinfos);
session.setMaxInactiveInterval(50 * 60);
//最大周数
int maxWeek = weekinfoService.MaxWeek();
request.setAttribute("maxWeek",maxWeek);
return "UserInterface";
}
/**
* 刷新界面
*/
@RequestMapping("/refreshALL")
public String refreshFaceAll(HttpSession session, HttpServletRequest request){
enumeration =session.getAttributeNames();//获取session中所有的键值对
// 获取session传过来的值
User user = (User)session.getAttribute("user");
//所有周数数组
List<Integer> integers = weekinfoService.allWeeks(user.getId());
//把周数插入到要返回的周报内容
List<Weekinfo> weekinfos = new ArrayList<Weekinfo>();
for (Integer integer : integers) {
Weekinfo weekinfo = weekinfoService.findWeeklyByIdAndWeek(user.getId(), integer);
weekinfos.add(weekinfo);
}
session.setAttribute("weekinfos", weekinfos);
session.setMaxInactiveInterval(50 * 60);
//最大周数
int maxWeek = weekinfoService.MaxWeek();
request.setAttribute("maxWeek",maxWeek);
return "UserInterface";
}
/**
* 删除
* @param id
* @param week
*/
@RequestMapping("/deleteWeekly")
public String deleteWeekly(@Param("id") Integer id, @Param("week")Integer week){
weekinfoService.deleteWeekly(id,week);
return "forward:/refresh";
}
/**
* 新建周报
*/
@RequestMapping("/newWeekly")
public String newWeekly(HttpServletRequest request, HttpServletResponse response,Model map,
@Param("id") Integer id, @Param("week")Integer week,
Map<String, Object> error){
Weekinfo weekinfo = weekinfoService.findWeeklyByIdAndWeek(id, week);
//1、判断是否存在该周报
if(weekinfo == null){
weekinfo = new Weekinfo();
//2.获取当前时间
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String addtime = df.format(new Date()).toString();
weekinfo.setTime(addtime);
weekinfo.setId(id);
weekinfo.setWeek(week);
weekinfoService.addWeekly(weekinfo);
map.addAttribute("weekinfo", weekinfo);
//3、转发到ChangeWeekly.jsp
return "showWeekly";
}else {
error.put("newmsg","no");
return "forward:/refresh";
}
}
/**
* 返回首页
* @return
*/
@RequestMapping("/Back")
public String Back(){
return "forward:/refresh";
}
@RequestMapping("Exit")
public String Exit(HttpServletRequest request, HttpServletResponse response){
request.getSession().invalidate();//清除 session 中的所有信息
return "../../newlogin"; //登录页面
}
/**
* 查看周报
* @param request
* @param response
* @param map
* @param id
* @param week
* @return
*/
@RequestMapping("/showWeekly")
public String showWeekly(HttpServletRequest request, HttpServletResponse response,
Model map,@Param("id") Integer id,
@Param("week")Integer week){
//1、获得ID 和 周数 得到用户对应周数信息
Weekinfo weekinfo = weekinfoService.findWeeklyByIdAndWeek(id, week);
int maxWeek = weekinfoService.MaxWeek();
map.addAttribute("weekinfo", weekinfo);
//最大周数
map.addAttribute("maxWeek", maxWeek);
//2、转发到ChangeWeekly.jsp
return "showWeekly";
}
/**
* 文件下载
* @param fileName
* @param request
* @param response
* @param session
* @throws Exception
*/
@RequestMapping("/FileDownload")
public void allWeeklyDownload(@RequestParam(value = "fileName", required = false) String fileName,
HttpServletRequest request,
HttpServletResponse response,
HttpSession session) throws Exception {
//获得文件名字，确定存在系统路径
String path = request.getSession().getServletContext().getRealPath("")+fileName;
//生成Excel文件
excelOutput(path);
System.out.println("下载文件路径："+path);
//得到要下载的文件
File file = new File(path);
if (!file.exists()) {
response.setContentType("text/html; charset=UTF-8");//注意text/html，和application/html
response.getWriter().print("<html><body>" +
"<script type='text/javascript'>" +
"swal('您要下载的资源已被删除！');" +
"</script>" +
"</body>" +
"</html>");
response.getWriter().close();
System.out.println("您要下载的资源已被删除！！");
return;
}
//转码，免得文件名中文乱码
fileName = URLEncoder.encode(fileName, "UTF-8");
//设置文件下载头
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
//1.设置文件ContentType类型，这样设置，会自动判断下载文件类型
response.setContentType("multipart/form-data");
// 读取要下载的文件，保存到文件输入流
FileInputStream in = new FileInputStream(path);
// 创建输出流
OutputStream out = response.getOutputStream();
// 创建缓冲区
byte buffer[] = new byte[1024]; // 缓冲区的大小设置是个迷 我也没搞明白
int len = 0;
//循环将输入流中的内容读取到缓冲区当中
while ((len = in.read(buffer)) > 0) {
out.write(buffer, 0, len);
}
//关闭文件输入流
in.close();
// 关闭输出流
out.close();
}
/**
* 文件下载
* @param fileName
* @param request
* @param response
* @param session
* @throws Exception
*/
@RequestMapping("/FileWeekDownload")
public void WeeklyDownload(@RequestParam(value = "fileName", required = false) String fileName,
@RequestParam(value = "week", required = false) Integer week,
HttpServletRequest request,
HttpServletResponse response,
HttpSession session) throws Exception {
//获得文件名字，确定存在系统路径
String path = request.getSession().getServletContext().getRealPath("")+fileName;
//生成单周Excel文件
excelOutputWeekly(path,week);
System.out.println("下载文件路径："+path);
//得到要下载的文件
File file = new File(path);
if (!file.exists()) {
response.setContentType("text/html; charset=UTF-8");//注意text/html，和application/html
response.getWriter().print("<html><body>" +
"<script type='text/javascript'>" +
"swal('您要下载的资源已被删除！');" +
"</script>" +
"</body>" +
"</html>");
response.getWriter().close();
System.out.println("您要下载的资源已被删除！！");
return;
}
//转码，免得文件名中文乱码
fileName = URLEncoder.encode(fileName, "UTF-8");
//设置文件下载头
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
//1.设置文件ContentType类型，这样设置，会自动判断下载文件类型
response.setContentType("multipart/form-data");
// 读取要下载的文件，保存到文件输入流
FileInputStream in = new FileInputStream(path);
// 创建输出流
OutputStream out = response.getOutputStream();
// 创建缓冲区
byte buffer[] = new byte[1024]; // 缓冲区的大小设置
int len = 0;
//循环将输入流中的内容读取到缓冲区当中
while ((len = in.read(buffer)) > 0) {
out.write(buffer, 0, len);
}
//关闭文件输入流
in.close();
// 关闭输出流
out.close();
}
(2)WeekinfoController：
@Controller
@RequestMapping("")
public class WeekInfoController {
@Resource
private WeekinfoService weekinfoService;
/*修改小组、个人周报*/
@RequestMapping("/updateWeekly")
public String Weekly(@Param("id") Integer id, @Param("week") Integer week, @Param("flag") String flag,
@Param("content") String content,@Param("tcontent") String tcontent,
@Param("limits") String limits,
Model map,
HttpSession session, Map<String, Object> error){
Weekinfo weekinfo = new Weekinfo();
weekinfo.setId(id);
weekinfo.setWeek(week);
//获取修改时间
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String time = simpleDateFormat.format(new Date()).toString();
weekinfo.setTime(time);
//weekinfo.setLimits(""); //设置limits
if(flag.equals("team")){ //如果是小组周报
weekinfo.setTcontent(tcontent);
weekinfoService.updateTeamWeekly(weekinfo);
}else{
weekinfo.setContent(content);
weekinfoService.updateWeekly(weekinfo);
}
weekinfo = weekinfoService.findWeeklyByIdAndWeek(id, week);
map.addAttribute("weekinfo",weekinfo);
map.addAttribute("msg","ok");
return "forward:/showWeekly";
}
@RequestMapping("/refreshWeekly")
public String refreshWeekly(){
return "showWeekly";
}
}
12、service文件下新建Service接口和Service接口实现类：
业务的主要管理，修改dao层代码不影响业务的操作，用户只负责调用服务，服务具体怎么做交给dao层去访问数据库。
(1)UserService:
public interface UserService {
public abstract User queryUserByID(int id);
//检查用户账号、密码是否一致
public abstract User queryUserByIDandPassword(int id,String password);
//获取所有用户信息
List<User> allUser();
//修改用户密码
void changePassword(@Param("id") Integer id, @Param("password")String password);
//查询指定组员的所有信息或不指定
List<User> queryUserAll(String team);
}
(2)WeekinfoService:
public interface WeekinfoService {
/**
* 通过ID和周数确定某一周周报内容
* @param
* @param
* @return
*/
public Weekinfo findWeeklyByIdAndWeek(Integer id, Integer week);
/**
* 修改某周周报内容
* @param
*/
public void updateWeekly(Weekinfo weekinfo);
/**
* 获取所有周报周数
* @return
*/
public List<Integer> allWeeks(Integer id);
/**
* 通过ID得到周报详细信息
* @param
* @return
*/
public List<Weekinfo> byIdAndWeek(Integer id);
/**
* 通过id week查询是否能新建周报数据
* @param id
* @param week
* @return
*/
public boolean isExiste(Integer id, Integer week);
/**
* 添加新的周报数据
* @param weekinfo
*/
public void addWeekly(Weekinfo weekinfo);
/**
* 删除某周周报内容
* @param id
* @param week
*/
public void deleteWeekly(Integer id, Integer week);
/**
* 修改组长周报
* @param weekinfo
*/
public void updateTeamWeekly(Weekinfo weekinfo);
/**
* 返回所有周报内容
* @return
*/
public List<Weekinfo> allWeekly();
/**
* 查询所有周数
* @return List<Integer>
*/
public List<Integer> queryWeeks();
/**
* 获取指定周数或不指定的所有信息
* @param week
* @return
*/
public List<Weekinfo> queryWeekInfoAll(String week);
/**
* 获取最新周数
* @return
*/
public int MaxWeek();
}
(3)UserServiceImpl
@Service("userService")
public class UserServiceImpl implements UserService {
@Resource
private UserDao userDao;
//通过ID查询用户信息
@Override
public User queryUserByID(int id) {
User user = userDao.queryUserByID(id);
return user;
}
//通过验证账号密码达到登录效果
@Override
public User queryUserByIDandPassword(int id, String password) {
User user = userDao.queryUserByIDandPassword(id,password);
return user;
}
//获取所有用户信息
@Override
public List<User> allUser(){
List<User> users = userDao.allUser();
return users;
}
@Override
public void changePassword(Integer id, String password) {
userDao.changePassword(id,password);
}
@Override
public List<User> queryUserAll(String team) {
return userDao.queryUserAll(team);
}
}
(4)WeekinfoServiceImpl:
@Service("userService")
public class UserServiceImpl implements UserService {
@Resource
private UserDao userDao;
//通过ID查询用户信息
@Override
public User queryUserByID(int id) {
User user = userDao.queryUserByID(id);
return user;
}
//通过验证账号密码达到登录效果
@Override
public User queryUserByIDandPassword(int id, String password) {
User user = userDao.queryUserByIDandPassword(id,password);
return user;
}
//获取所有用户信息
@Override
public List<User> allUser(){
List<User> users = userDao.allUser();
return users;
}
@Override
public void changePassword(Integer id, String password) {
userDao.changePassword(id,password);
}
@Override
public List<User> queryUserAll(String team) {
return userDao.queryUserAll(team);
}
}
13. 在view文件夹下新建相关JSP文件
（1）登录jsp在webapp文件下新建newlogin.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta charset="utf-8">
<link rel="shortcut icon" href="./images/bluebird.png"/>
<%-- <link rel="shortcut icon" type="image/x-icon" href="/static/images/redbird.png"/>--%>
<title>乾坤未定，你我皆黑马</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<!-- CSS -->
<link rel="stylesheet" href="css/reset.css">
<link rel="stylesheet" href="css/supersized.css">
<link rel="stylesheet" href="css/style.css">
</head>
<c:if test="${not empty sessionScope.user}">
<script>
window.location.href="/refresh"
</script>
</c:if>
<body oncontextmenu="return false">
<div class="page-container">
<h1>周报系统</h1>
<form action="/UserLogin" method="post" name="data">
<div>
<input type="text" name="id" class="id" placeholder="ID" autocomplete="off"/>
</div>
<div>
<input type="password" name="password" class="password" placeholder="Password"
oncontextmenu="return false" onpaste="return false"/>
</div>
<button id="submit" type="submit">奥力给</button>
<br>
<br>
<br>
<div tyle="text-align: center">
<span style="font-size: 1rem;color: #ac2925">
<c:if test="${not empty requestScope.errors}">
${requestScope.errors}</c:if>
</span>
</div>
</form>
<div class="connect">
<p>A thousand journey takes every step.</p>
<p style="margin-top:20px;">不积跬步,无以至千里。</p>
</div>
</div>
<div class="alert" style="display:none">
<h2>消息</h2>
<div class="alert_con">
<p id="ts"></p>
<p style="line-height:70px"><a class="btn">确定</a></p>
</div>
</div>
<!-- Javascript -->
<script src="http://apps.bdimg.com/libs/jquery/1.6.4/jquery.min.js" type="text/javascript"></script>
<script src="js/supersized.3.2.7.min.js"></script>
<script src="js/supersized-init.js"></script>
<script>
window.onload = function () {
$(".connect p").eq(0).animate({"left": "0%"}, 600);
$(".connect p").eq(1).animate({"left": "0%"}, 400);
}
function is_hide() {
$(".alert").animate({"top": "-40%"}, 300)
}
function is_show() {
$(".alert").show().animate({"top": "45%"}, 300)
}
</script>
</body>
</html>
(2)用户操作界面：
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8" %>
<%@ page import="top.weidaboy.entity.User" %>
<%@ page import="top.weidaboy.entity.Weekinfo" %>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<!-- Bootstrap -->
<link href="/static/css/bootstrap.min.css" rel="stylesheet">
<link href="/static/css/UserInterface.css" rel="stylesheet">
<link href="/static/css/sweetalert2.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
<script src="/static/js/jquery-3.3.1.min.js" language="JavaScript" ></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="/static/js/bootstrap.min.js"></script>
<%-- 弹出框样式--%>
<link href="/static/css/sweetalert2.css" rel="stylesheet">
<script src="/static/js/es6-promise.auto.js" type="text/javascript"></script>
<script src="/static/js/sweetalert2.min.js" type="text/javascript"></script>
<link href="/static/dist/css/simple-bs-dialog.min.css" rel="stylesheet">
<script src="/static/dist/js/simple-bs-dialog.min.js"></script>
<script>
$(function () {
//获取登录的用户信息 如果request没有反应，记得添加jar包：tomcat8.0
<%-- //获取用户修改密码状态--%>
<c:if test="${requestScope.changePassword != null}">
swal("密码修改成功，请务必记住你的密码");
</c:if>
<c:if test="${requestScope.newmsg != null}">
swal("已经存在该周报");
</c:if>
});
</script>
<style>
#changepassword,#showLiuYan,#showAllWeekly{
float:right;
font-size:1.75rem;
margin-left:1.75rem;
}
</style>
<link rel="shortcut icon" href="../images/redbird.png"/>
<title>用户界面</title>
<%-- user的session存在，才可以进入用户揭秘那--%>
<c:if test="${empty sessionScope.user}">
<c:redirect url="../../newlogin.jsp" />
</c:if>
</head>
<body>
<div style="text-align: center; margin-top: 1.5rem;margin-bottom: 1.5rem">
<span class="label label-success" style="font-size: 3.5rem">
加油吧${sessionScope.user.username}
</span>
</div>
<a href="/Exit" style="float:right;font-size:1.75rem; margin-left: 1.2rem;
text-decoration:none" class="btn btn-danger">退出登录</a>
<input type="button" id="showLiuYan" value="查看留言"
class="btn btn-primary" data-toggle="button" aria-pressed="false" autocomplete="off"/>
<input type="button" id="changepassword" value="重置密码"
class="btn btn-primary" data-toggle="button" aria-pressed="false" autocomplete="off"/>
<input type="button" id="showAllWeekly" value="显示全部"
class="btn btn-primary" data-toggle="button"
aria-pressed="false" autocomplete="off"/>
<br>
<form method="post" name="data" id="data">
<table class="table table-condensed" id="allData" >
<tr style="background-color:gray;
font-size: 1.75rem;">
<th style="text-align: center; width:15%">工号</th>
<th style="text-align: center; width:15%">姓名</th>
<th style="text-align: center; width:15%">组号</th>
<th style="text-align: center; width:15%">周数</th>
<th style="text-align: center"> </th>
<th style="text-align: center; width:5% "> </th>
<th style="text-align: center"> </th>
</tr>
<%-- //返回首页--%>
<c:if test="${sessionScope.user == null}">
<c:redirect url="../../newlogin.jsp" >
</c:redirect>
</c:if>
<%-- 获取用户登录信息--%>
<c:if test="${not empty weekinfos}">
<c:forEach items="${weekinfos}" var="weekinfo" varStatus="w">
<tr style="font-size: 1.65rem;">
<c:if test="${not empty user}">
<td><%--工号--%>
${user.id}
</td>
<td><%-- 姓名--%>
${user.username}
</td>
<td><%--组号--%>
${user.team}
</td>
</c:if>
<td><%-- 周数--%>
${weekinfo.week}
</td>
<%--修改与删除--%>
<td>
<a style="text-decoration:none"
class="btn btn-primary"
href="${pageContext.request.contextPath}/showWeekly?id=${weekinfo.id}&week=${weekinfo.week}">
修改周报内容</a>
</td>
<td>
<input type="button" id="deleteweekly"
value="删除内容" class="deleteweekly"/>
</td>
<td style="display: none" id="yulandata">
${weekinfo.content}
</td>
<td>
<input type="button" id="yulanbtn" class="yulanbtn" value="预览" />
</td>
</tr>
<%--id唯一，所以用id的button，只能第一行提示删除，我得使用class--%>
<%--隐藏新的周数、id、新建周数--%>
<input type="hidden" id="yulan" value="${weekinfo.content}"/>
<input type="hidden" id="id" value="${weekinfo.id}"/>
<input type="hidden" id="week" value="${weekinfo.week}"/>
<%-- 最大周数--%>
<input type="hidden" name="maxWeek" id="maxWeek" value="${requestScope.maxWeek}"/>
</c:forEach>
</c:if>
<%-- 导入相关的js文件--%>
<script type="text/javascript" src="/static/js/UserInterface.js"> </script>
</table>
</form>
</body>
</html>
(3)填写周报信息界面：
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page import="top.weidaboy.entity.Weekinfo" %>
<%@ page import="top.weidaboy.entity.User" %>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<!-- Bootstrap -->
<link href="/static/css/bootstrap.min.css" rel="stylesheet">
<link href="/static/css/ChangeWeekly.css" rel="stylesheet">
<link href="/static/css/sweetalert2.css" rel="stylesheet">
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuer
y，所以必须放在前边) -->
<script language="JavaScript" src="/static/js/jquery-3.3.1.min.js"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="/static/js/bootstrap.min.js"></script>
<%-- 弹出框样式--%>
<script src="/static/js/es6-promise.auto.js" type="text/javascript"></script>
<script src="/static/js/sweetalert2.min.js" type="text/javascript"></script>
<%--时间范围选择器--%>
<link rel="stylesheet" type="text/css" href="/static/css/timecss/daterangepicker.css"/>
<script type="text/javascript" src="/static/js/moment.min.js"></script>
<script type="text/javascript" src="/static/js/daterangepicker.min.js"></script>
<link rel="shortcut icon" href="../images/redbird.png"/>
<title>周报内容修改</title>
</head>
<%--background-image:url('images/bj.jpg'); 先不要背景看看--%>
<body style="background-color:#dff0d8;
background-repeat:no-repeat;
background-size:100% 100%">
<div style="text-align: center; margin-top: 1.5rem;margin-bottom: 1.5rem">
<span class="label label-success" style="font-size: 3.5rem">
<input type="hidden" id="id" name="id" value="${sessionScope.user.id}"/>
加油吧${sessionScope.user.username}</span>
</div>
<script>
$(function () {
//返回首页
<c:if test="${sessionScope.user == null}">
<c:redirect url="../../newlogin.jsp" >
</c:redirect>
</c:if>
//获取用户修改内容
<c:if test="${requestScope.msg != null}">
swal("您的内容保存成功");
</c:if>
//获取用户新建周报提示信息
<c:if test="${requestScope.newmsg != null}">
swal("新建周报成功！");
</c:if>
});
</script>
</h1>
<a href="/Exit" style="float:right;font-size:1.75rem;
text-decoration:none">退出登录</a>
<br>
<form action="${pageContext.request.contextPath}/updateWeekly" method="post" id="datafrom" style="width: 100%">
<table align="center" style="text-align:center;width: 100%" cellspacing="0px">
<tr style="background-color:rgba(124,112,128,0.31); font-size: 2rem;">
<th style="width:18%;text-align:center;">工号</th>
<th style="width:18%;text-align:center;">姓名</th>
<th style="width:25%;text-align:center;">周次信息</th>
<th style="width:25%;text-align:center;">上一次周报修改时间</th>
<th style="width:10%;text-align:center;">周数</th>
</tr>
<c:if test="${not empty weekinfo}">
<tr style=" font-size: 2rem">
<td id="iddata" name="iddata" style="width:18%;text-align:center">
${sessionScope.user.id}</td>
<td id="usernamedata" name="usernamedata" style="width:18%;text-align: center">
${sessionScope.user.username}</td>
<td id="timelimits" name="timelimits" style="width:25%;text-align: center">
<%-- <input id="demo" name="demo" type="hidden" style="border: none;text-align: center;--%>
<%-- background-color:transparent"/>--%>
${requestScope.weekinfo.limits}
</td>
<td style="width:25%;text-align: center">
${requestScope.weekinfo.time}</td>
<td id="weekdata" name="weekdata" style="width:10%;text-align: center">
${requestScope.weekinfo.week}</td>
</tr>
<tr style="background-color:rgba(124,112,128,0.31);font-size: 2rem;">
<td colspan="5" style="height: 4.5rem">
<span class="label label-success" id="titletip" style="font-size:2.5rem">个人周报</span>
</td>
</tr>
<tr>
<td colspan="5">
<%-- readonly : 不可写 --%>
<pre><textarea name="contentdata" id="contentdata" rows="15" cols="20" style="background-color:transparent; border:0.2rem solid black;font-family:华文楷体; font-size: 2.0rem; OVERFLOW:scroll; width: 100%;/*height: 500%;*/ resize: none">${requestScope.weekinfo.content}</textarea></pre>
</td>
</tr>
<tr>
<td>
<input type="button" id="peopleweekly" class="btn btn-primary"
style="font-family: 仿宋;font-size: 1.7rem" value="个人周报"/>
<input type="button" id="teamweekly" class="btn btn-primary"
style="font-family: 仿宋;font-size: 1.7rem" value="小组周报"/>
</td>
<td>
</td>
<td>
<input type="button" id="teamsubmitbut" class="btn btn-primary"
style="font-family: 仿宋;font-size: 1.7rem" value="提交到小组周报修改"/>
</td>
<td>
<input type="button" id="submitbut" class="btn btn-primary"
style="font-family: 仿宋;font-size: 1.7rem" value="提交到个人周报修改"/>
</td>
<td>
<a style="text-decoration:none;font-size: 2rem;font-family: 仿宋"
class="btn btn-warning"
href="/Back">返回</a>
</td>
</tr>
<%--周报内容:用input来接收--%>
<tr>
<td>
<input type="hidden" name="id" id="id" value="${requestScope.weekinfo.id}"/>
<%--判断提交的是小组周报还是个人周报--%>
<input type="hidden" name="flag" id="flag" value=""/>
</td>
<td>
<input type="hidden" name="week" id="week" value="${requestScope.weekinfo.week}"/>
</td>
<%--格式化显示数据--%>
<script>
//转换函数
function toTextarea(str) {
var reg = new RegExp("<br>", "g");
var regSpace = new RegExp(" ", "g");
str = str.replace(reg, "\n");
str = str.replace(regSpace, " ");
return str;
}
</script>
<td>
<%-- 获取周次信息--%>
<input type="hidden" name="maxWeek" id="maxWeek" value="${requestScope.maxWeek}"/>
<input type="hidden" name="limits" id="limits" value="${requestScope.weekinfo.limits}"/>
<input type="hidden" name="content" id="content" value="${requestScope.weekinfo.content}"/>
<input type="hidden" name="tcontent" id="tcontent" value="${requestScope.weekinfo.tcontent}"/>
</td>
</tr>
<tr>
<td colspan="5" style="height: 9.0rem">
<span class="label label-success" style="font-size: 2.5rem">留言板</span>
</td>
</tr>
<tr >
<td colspan="5" >
<pre><textarea name="liuyandata" id="liuyandata" rows="5" cols="20" style="background-color:transparent; border:0.2rem solid black;font-family:华文楷体; font-size: 2.0rem; OVERFLOW:scroll; width: 100%;/*height: 500%;*/ resize: none"></textarea></pre>
</td>
</tr>
<%-- 间隔--%>
<tr>
<td colspan="5">
<input type="button" id="liuyansimt" value="提交留言" onclick="msgsubmit()"
class="btn btn-primary" data-toggle="button" aria-pressed="false" autocomplete="off"
style="float: right"/>
</td>
</tr>
</table>
</form>
</c:if>
<script type="text/javascript" src="/static/js/showWeekly.js"></script>
</body>
</html>
（4）管理员下载界面：
14、显示效果：
（1）登录界面：
(2)登录成功界面：在该界面中，用户可以查询自己的周报内容，重置密码，删除对应的周报信息等操作
（3）修改周报内容界面：系统会在新的一周生成新的周报，用户只需要填好内容就可以了，组员添加个人周报，组长就添加小组周报。
（4）管理员界面：管理员可以查看任意小组任意周数的周报信息，并且导出为Excel文件，当然，全部信息也是可以的。
15、小结：
本次项目的搭建，让我对SSM整个框架的学习又得到了增长，我的小伙伴完成了管理员界面和用户登录界面的工作，而我负责用户修改周报数据的任务，以及表格导入导出，两个人碰到的坑，就相互鼓励，学习不是一帆风顺的，总会有些磕磕绊绊，但是只要下定决心去解决，肯定能做得更好。
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