手把手教你ssm框架搭建

程序员文章站 2024-01-19 08:02:16

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ssm框架搭建大致步骤是：
1.先配置前端控制器(DispatcherServlet)
前端控制器其实就是一个servlet 所以应该配置在web.xml中和配置普通的servlet差不多（它会自动去web-inf下去查找一个名字为[servlet_name]-servlet.xml的文件但是我们一般没有按这个规范命名或者没有将该文件放在web-info下面所以此时我们应该在<init-param>标签下指明该文件的位置）
2.按理说第二步应该配置处理器映射器和处理器适配器但是系统都会给我们默认的配置如果没有特殊要求按默认的配置就可以
3.配置组件扫描器（component-scanner）和注解驱动（annotation-driven）
4.配置视图解析器（将逻辑视图转换为物理视图）
5.配置编码过滤器其实就是一个Filter
6.开启spring的IOC监听
7.读取spring.xml(用context-param标签其实spring和springMVC用一个标签就可以)
8.配置数据源
9.配置事务管理器
10.配置事务拦截器

11.配置自动代理

***************************************************详细步骤**************************************************************

首先需要搭建一个动态web项目 大致步骤如下

手把手教你ssm框架搭建

项目结构如下

手把手教你ssm框架搭建

****************************************************项目代码************************************************************

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>注册页面</title>
</head>
<body>
	<form action="regist.do" method="get">
		
		<table align="left" >
			<tr>
				<td>name</td>
				<td><input name="name" type="text"></td>
			</tr>
			<tr>
				<td>age</td>
				<td><input name="age" type="text"></td>
			</tr>
			<tr>
				<td>
				<input type="submit" value="submit">
				</td>
			</tr>
		</table>
	</form>
</body>
</html>

Student.java

package cn.liujd.bean;

import java.io.Serializable;

/**
 * 普通的学生bean类
 * @author liujd
 *
 */
public class Student implements Serializable{
	private static final long serialVersionUID = 6724577147867445725L;

	private Integer id;

    private String name;

    private Integer age;

    public Integer getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name == null ? null : name.trim();
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

	@Override
	public String toString() {
		return "Student [id=" + id + ", name=" + name + ", age=" + age + "]";
	}
}

StudentMapper.java

package cn.liujd.dao;

import cn.liujd.bean.Student;

/**
 * dao层接口 与数据库交互
 * @author liujd
 *
 */
public interface StudentMapper {

	//保存学生信息的方法
	int saveStudent(Student student);
	
}

StudentMapper.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" >
<!-- mapper文件   -->
<mapper namespace="cn.liujd.dao.StudentMapper" >
  <resultMap id="BaseResultMap" type="cn.liujd.bean.Student" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="name" property="name" jdbcType="VARCHAR" />
    <result column="age" property="age" jdbcType="INTEGER" />
  </resultMap>
  <sql id="Base_Column_List" >
    id, name, age
  </sql>
  
  <insert id="saveStudent" parameterType="cn.liujd.bean.Student" useGeneratedKeys="true" keyProperty="id" >
    insert into student
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="name != null" >
        name,
      </if>
      <if test="age != null" >
        age,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="name != null" >
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="age != null" >
        #{age,jdbcType=INTEGER},
      </if>
    </trim>
  </insert>
</mapper>

IStudentService.java

package cn.liujd.service;

import cn.liujd.bean.Student;

/**
 * service层接口
 * @author liujd
 *
 */
public interface IStudentService {

	//保存学生对象的方法
	int savaStudent(Student student);
}

StudentServiceImpl.java

package cn.liujd.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import cn.liujd.bean.Student;
import cn.liujd.dao.StudentMapper;

/**
 * service层实现类
 * @author liujd
 *
 */
@Service
public class StudentServiceImpl implements IStudentService{

	@Autowired
	private StudentMapper mapper;
	
	@Override
	public int savaStudent(Student student) {
		return mapper.saveStudent(student);
	}

}

StudentController.java

package cn.liujd.web;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import cn.liujd.bean.Student;
import cn.liujd.service.IStudentService;

/**
 * web层
 * @author liujd
 *
 */
@Controller
public class StudentController {

	@Autowired
	private IStudentService service;
	
	//存到数据库
	@RequestMapping("regist.do")
	public String regist(Student student) {
		if(student != null) {
			service.savaStudent(student);
		}
		return "register";
	}
	
	//用来跳转到注册页面
	@RequestMapping("/register")
	public String init(){
		return "register";
	}
}

以下是配置文件都有注释

db.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test
use=xxx
password=xxx

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>ssmCombine</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>
  
  <!-- 配置前端控制器 -->
  <servlet>
    <servlet-name>ssm</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
    <!-- 读取springMVC配置文件 -->
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring.xml</param-value>
    </init-param>
    <!-- 加载时机 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>ssm</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  
	<!-- 配置编码过滤器 -->
	<filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
   	 <!-- 编码格式 -->
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
    <init-param>
     <!-- 默认是false 需要设置为true才能设置编码 -->
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
	  </filter>
	  <filter-mapping>
	    <filter-name>CharacterEncodingFilter</filter-name>
	    <url-pattern>/*</url-pattern>
	  </filter-mapping>
	  
	  <!-- 开启IOC监听 -->
	  <listener>
	    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	  </listener>
  		
  	  <!-- 初始化spring配置文件所在位置 -->
	  <context-param>
	    <param-name>contextConfigLocation</param-name>
	    <param-value>classpath:spring.xml</param-value>
	  </context-param>
</web-app>

spring.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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
		http://www.springframework.org/schema/mvc 
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-3.2.xsd 
		http://www.springframework.org/schema/aop 
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
		http://www.springframework.org/schema/tx 
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">
		
	<!-- 组件扫描 注解驱动 -->	
	<context:component-scan base-package="cn.liujd"></context:component-scan>
	<mvc:annotation-driven/>
	
	  
  <!-- 配置视图解析器 -->
  	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>  
		<property name="prefix" value="/WEB-INF/"/>  
		<property name="suffix" value=".jsp"/>  
  	</bean>
	
	<!-- 读取数据源文件 -->	
	<context:property-placeholder location="classpath:db.properties"/> 
	<!-- 配置数据源 -->
	<bean id="dataSource"
		class="org.apache.commons.dbcp.BasicDataSource">
		<property name="driverClassName">
			<value>${driver}</value>
		</property>
		<property name="url">
			<value>${url}</value>
		</property>
		<property name="username">
			<value>${use}</value>
		</property>
		<property name="password">
			<value>${password}</value>
		</property>
		<!-- 最大连接数 -->
		<property name="maxActive">
			<value>80</value>
		</property>
		<!-- 最大空闲连接数 -->
		<property name="maxIdle">
			<value>20</value>
		</property>
		<!-- 最大等待时间:当没有可用连接时,连接池等待连接被归还的最大时间 单位:毫秒 -->
		<!-- 超过时间则抛出异常,如果设置为-1表示无限等待 -->
		<property name="maxWait">
			<value>3000</value>
		</property>
	</bean>
	
	<!-- 创建sqlsessionFactory 生产sqlsession -->
	<bean name="sqlSessionFactory" class=" org.mybatis.spring.SqlSessionFactoryBean ">
		<property name="configLocation" value="classpath:mybatis-config.xml"></property>
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	
	<!-- 配置mybatis接口代理开发 -->
	<bean class=" org.mybatis.spring.mapper.MapperScannerConfigurer ">
	 <property name="basePackage" value="cn.liujd.dao"></property>
	 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
	 </bean>
	 
	 <!-- 配置事务 -->
	<bean id="transactionManager" class=" org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	
	<!-- 配置通知 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
	<tx:attributes>
	<tx:method name="save*" propagation="REQUIRED" />
	<tx:method name="*" propagation="REQUIRED" />	
	</tx:attributes>
	</tx:advice>
	
	<!-- 配置拦截service -->
	<aop:config>
		<aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.liujd.service.*.*(..))"/>
	</aop:config>
	
</beans>

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">
  <configuration>
  
  <settings>
		<setting name="jdbcTypeForNull" 
		value="VARCHAR"></setting>
	</settings>
  <typeAliases>
  	<package name="cn.liujd.bean" /> 
  </typeAliases>
  
  	<mappers>
		<package name="cn.liujd.dao"/>
    </mappers>
  </configuration>

运行结果：

手把手教你ssm框架搭建

该项目的源代码以打包，下载地址为http://download.csdn.net/detail/liujiding/9901555

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