整合SSM（IDEA版）

程序员文章站 2022-03-15 23:29:54

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选择Maven模版
新建java、resources目录，基本的web项目目录
新建各种xml和properties
pom.xml引入依赖

<dependencies>

    <!-- 单元测试 -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
    </dependency>

    <!-- 1.日志 -->
    <!-- 实现slf4j接口并整合 -->

    <!--日志输出-->
    <!--log4j-->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <version>1.1.1</version>
    </dependency>

    <!-- 2.数据库 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.37</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
    </dependency>

    <!-- DAO: MyBatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.3.0</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.3</version>
    </dependency>

    <!-- 3.Servlet web -->
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.5.4</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>

    <!-- 4.Spring -->
    <!-- 1)Spring核心 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <!-- 2)Spring DAO层 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <!-- 3)Spring web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <!-- 4)Spring test -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
</dependencies>

配置src\main\resource\log4j.properties

#定义LOG输出级别
log4j.rootLogger=INFO,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式，下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File = org.apache.log4j.RollingFileAppender
#指定输出目录
#log4j.appender.File.File = ‪C://Users//Administrator//Desktop//log.txt
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
#输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout

配置resource\jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
#jdbc:mysql://localhost:3306/test?serverTimezone=GMT%2B8
jdbc.username=root
jdbc.password=sasa

配置applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!-- 读取db.properties -->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 数据库驱动 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    <!-- 事务管理器，依赖于数据源 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 开启事务注解 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
    <!-- 配置MyBatis工厂 SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据源 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 指定Mybatis核心配置文件位置 -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!--配置SQL映射文件-->
        <property name="mapperLocations">
            <list>
                <!--扫描mapper包下所有的xml格式的文件-->
                <!-- 如果Mapper.xml与Mapper.class在同一个包下且同名，spring扫描Mapper.class的同时会自动扫描同名的Mapper.xml并装配到Mapper.class。
                如果Mapper.xml与Mapper.class不在同一个包下或者不同名，就必须使用配置mapperLocations指定mapper.xml的位置。
                此时spring是通过识别mapper.xml中的 <mapper namespace="com.fan.mapper.UserDao">namespace的值来确定对应的Mapper.class的。-->
                <value>classpath:mapper/UserMapper.xml</value>
            </list>
        </property>
    </bean>
    <!-- 配置mapper扫描器 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注意！ 如果mapper.xml和mapper.class不在同一个包下，必须将两个包都加入扫面。
        否则会报“No qualifying bean of type found for dependency”-->
        <property name="basePackage" value="mapper,com.*.dao"/>
    </bean>
    <!-- 扫描com.*所有的@service和@Repository -->
    <context:component-scan base-package="com"/>
</beans>

配置resource\mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<!--因为已经在 Spring 中配置了数据源信息以及 mapper 接口文件扫描器，
所以在 Mybatis 的配置文件中只需要根据 POJO 类路径进行别名配置。 -->
<configuration>
    <settings>
        <!--日志模式，让mybatis的启动打印日志-->
        <setting name="logImpl" value="LOG4J"/>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!-- 别名定义 -->
    <typeAliases>
        <typeAlias type="com.user.pojo.User" alias="User"/>
    </typeAliases>
</configuration>

配置resource\springmvc-config.xml

<?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:p="http://www.springframework.org/schema/p"
       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-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

    <!-- 配置用于扫描 @Controller 注解的包扫描器、注解驱动器以及视图解析器。-->

    <!-- 配置包扫描器，扫描@Controller注解的类 -->
    <context:component-scan base-package="com.*.action"/>
    <!-- 加载注解驱动 -->
    <mvc:annotation-driven/>
    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    	<!--例如@controller层返回student,就会加上prefix指定的前缀后suffix指定的后缀，访问到/web-inf/views/student.jsp-->
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

10.测试
整合SSM（IDEA版）


@Controller
public class UserAction {
    @Autowired
    private UserService userService;

    @RequestMapping("/findUserById")
    public String findUserById(@RequestParam("id") int id,Model model){
        User user = userService.findUserById(id);
        model.addAttribute("user",user);
        System.out.println("来了");
        return "user";
    }
}

public interface UserService {
    public User findUserById(int id);
}

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    public UserMapper userMapper;

    @Override
    public User findUserById(int id) {
        return userMapper.findUserById(id);
    }
}

@Repository
public interface UserMapper {
    public User findUserById(int id);
}

package com.user.pojo;
import java.io.Serializable;
import java.util.Date;

public class User implements Serializable {
    private int id;
    private String username;
    private String password;
    private String gender;
    private String email;
    private String province;
    private String city;
    private Date birthday;

    public User() {
    }

    public User(int id, String username, String password, String gender, String email, String province, String city, Date birthday) {
        super();
        this.id = id;
        this.username = username;
        this.password = password;
        this.gender = gender;
        this.email = email;
        this.province = province;
        this.city = city;
        this.birthday = birthday;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getProvince() {
        return province;
    }

    public void setProvince(String province) {
        this.province = province;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public Date getBirthday() {
        return birthday;
    }

    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }
}

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<body>
<h2>Hello World!</h2>

<form id="_form" method="get" action="findUserById">
    <input type="text" name="id"/>
    <a onclick="document.getElementById('_form').submit();">点击提交</a>
</form>

</body>
</html>

user.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>用户信息</title>
</head>
<body>
<table border="1">
    <tr>
        <td>编号</td>
        <td>姓名</td>
        <td>密码</td>
        <td>city</td>
    </tr>
    <tr>
        <td>${user.id}</td>
        <td>${user.username}</td>
        <td>${user.password}</td>
        <td>${user.city}</td>
    </tr>
</table>
</body>
</html>

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