【SSM 6】Spring+SpringMVC+Mybatis框架搭建步骤

一、整体概览

首先看maven工程的创建

二、各层的文件配置

2.1，SSM父工程

<span style="font-family:KaiTi_GB2312;font-size:18px;"><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>SSM-parent</groupId>
  <artifactId>Angel.SSM</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>pom</packaging>
  
  	<!-- 集中定义依赖版本号 -->
	<properties>
		<junit.version>4.12</junit.version>
		<spring.version>4.1.3.RELEASE</spring.version>
		<mybatis.version>3.2.8</mybatis.version>
		<mybatis.spring.version>1.2.2</mybatis.spring.version>
		<mysql.version>5.1.32</mysql.version>
		<slf4j.version>1.6.4</slf4j.version>
		<jackson.version>2.4.2</jackson.version>
		<druid.version>1.0.9</druid.version>
		<jstl.version>1.2</jstl.version>
		<servlet-api.version>2.5</servlet-api.version>
		<jsp-api.version>2.0</jsp-api.version>
		<joda-time.version>2.5</joda-time.version>
		<commons-lang3.version>3.3.2</commons-lang3.version>
		<commons-io.version>1.3.2</commons-io.version>
		<commons-net.version>3.3</commons-net.version>
		<jsqlparser.version>0.9.1</jsqlparser.version>
		<commons-fileupload.version>1.3.1</commons-fileupload.version>
	</properties>
	<dependencyManagement>
		<dependencies>
			<!-- 时间操作组件 -->
			<dependency>
				<groupId>joda-time</groupId>
				<artifactId>joda-time</artifactId>
				<version>${joda-time.version}</version>
			</dependency>
			<!-- Apache工具组件 -->
			<dependency>
				<groupId>org.apache.commons</groupId>
				<artifactId>commons-lang3</artifactId>
				<version>${commons-lang3.version}</version>
			</dependency>
			<dependency>
				<groupId>org.apache.commons</groupId>
				<artifactId>commons-io</artifactId>
				<version>${commons-io.version}</version>
			</dependency>
			<dependency>
				<groupId>commons-net</groupId>
				<artifactId>commons-net</artifactId>
				<version>${commons-net.version}</version>
			</dependency>
			<!-- Jackson Json处理工具包 -->
			<dependency>
				<groupId>com.fasterxml.jackson.core</groupId>
				<artifactId>jackson-databind</artifactId>
				<version>${jackson.version}</version>
			</dependency>
			<!-- 单元测试 -->
			<dependency>
				<groupId>junit</groupId>
				<artifactId>junit</artifactId>
				<version>${junit.version}</version>
				<scope>test</scope>
			</dependency>
			<!-- 日志处理 -->
			<dependency>
				<groupId>org.slf4j</groupId>
				<artifactId>slf4j-log4j12</artifactId>
				<version>${slf4j.version}</version>
			</dependency>
			<!-- Mybatis -->
			<dependency>
				<groupId>org.mybatis</groupId>
				<artifactId>mybatis</artifactId>
				<version>${mybatis.version}</version>
			</dependency>
			<dependency>
				<groupId>org.mybatis</groupId>
				<artifactId>mybatis-spring</artifactId>
				<version>${mybatis.spring.version}</version>
			</dependency>
			<!-- MySql -->
			<dependency>
				<groupId>mysql</groupId>
				<artifactId>mysql-connector-java</artifactId>
				<version>${mysql.version}</version>
			</dependency>
			<!-- 连接池 -->
			<dependency>
				<groupId>com.alibaba</groupId>
				<artifactId>druid</artifactId>
				<version>${druid.version}</version>
			</dependency>
			<!-- Spring -->
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-context</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-beans</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-webmvc</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-jdbc</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<dependency>
				<groupId>org.springframework</groupId>
				<artifactId>spring-aspects</artifactId>
				<version>${spring.version}</version>
			</dependency>
			<!-- JSP相关 -->
			<dependency>
				<groupId>jstl</groupId>
				<artifactId>jstl</artifactId>
				<version>${jstl.version}</version>
			</dependency>
			<dependency>
				<groupId>javax.servlet</groupId>
				<artifactId>servlet-api</artifactId>
				<version>${servlet-api.version}</version>
				<scope>provided</scope>
			</dependency>
			<dependency>
				<groupId>javax.servlet</groupId>
				<artifactId>jsp-api</artifactId>
				<version>${jsp-api.version}</version>
				<scope>provided</scope>
			</dependency>
		</dependencies>
	</dependencyManagement>

	<build>
		<finalName>${project.artifactId}</finalName>
		<plugins>
			<!-- 资源文件拷贝插件 -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-resources-plugin</artifactId>
				<version>2.7</version>
				<configuration>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
			<!-- java编译插件 -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
					<encoding>UTF-8</encoding>
				</configuration>
			</plugin>
		</plugins>
		<pluginManagement>
			<plugins>
				<!-- 配置Tomcat插件 -->
				<plugin>
					<groupId>org.apache.tomcat.maven</groupId>
					<artifactId>tomcat7-maven-plugin</artifactId>
					<version>2.2</version>
				</plugin>
			</plugins>
		</pluginManagement>
	</build>
  
	<modules>
		<module>Angel-pojo</module>
		<module>Angel-mapper</module>
		<module>Angel-service</module>
		<module>Angel-web</module>
	</modules>
</project></span>

2.2，pojo不依赖任何jar包，略过

2.3，mapper

<span style="font-family:KaiTi_GB2312;font-size:18px;"><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>
  <parent>
    <groupId>SSM-parent</groupId>
    <artifactId>Angel.SSM</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>Angel-mapper</artifactId>
  
  <!-- 依赖管理 -->
	<dependencies>
		<dependency>
			<groupId>SSM-parent</groupId>
			<artifactId>Angel-pojo</artifactId>
			<version>0.0.1-SNAPSHOT</version>
		</dependency>
		<!-- Mybatis -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
		</dependency>
		<!-- MySql -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
		</dependency>
		<!-- 连接池 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
		</dependency>
	</dependencies>

	<!-- 如果不添加此节点Mybatis的mapper.xml文件都会被漏掉 -->
	<build>
		<resources>
			<resource>
				<directory>src/main/java</directory>
				<includes>
					<include>**/*.properties</include>
					<include>**/*.xml</include>
				</includes>
				<filtering>false</filtering>
			</resource>
		</resources>
	</build>
</project></span>

2.4，service

<span style="font-family:KaiTi_GB2312;font-size:18px;"><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>
  <parent>
    <groupId>SSM-parent</groupId>
    <artifactId>Angel.SSM</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>Angel-service</artifactId>
  
  <!-- 依赖管理 -->
	<dependencies>
		<dependency>
			<groupId>SSM-parent</groupId>
			<artifactId>Angel-mapper</artifactId>
			<version>0.0.1-SNAPSHOT</version>
		</dependency>
		
		<!-- Spring -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
		</dependency>
	</dependencies>
  
</project></span>

2.5，Web

<span style="font-family:KaiTi_GB2312;font-size:18px;"><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>
	<parent>
		<groupId>SSM-parent</groupId>
		<artifactId>Angel.SSM</artifactId>
		<version>0.0.1-SNAPSHOT</version>
	</parent>
	<artifactId>Angel-web</artifactId>
	<packaging>war</packaging>

	<!-- 依赖管理 -->
	<dependencies>
		<dependency>
			<groupId>SSM-parent</groupId>
			<artifactId>Angel-service</artifactId>
			<version>0.0.1-SNAPSHOT</version>
		</dependency>
		<!-- JSP相关 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jsp-api</artifactId>
			<scope>provided</scope>
		</dependency>
		<!-- Jackson Json处理工具包 -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
		</dependency>
	</dependencies>
</project></span>

2.5.2，spring整合配置文件

2.5.2.1，Mybatis

目前无，当使用到分页插件，或者额外的功能配置时，需要进行配置，下面以配置分页插件为例：

<span style="font-family:KaiTi_GB2312;font-size:18px;"><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
	PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
	"http://mybatis.org/dtd/mybatis3 config.dtd">
	
<configuration>
	<!-- 配置分页插件 -->
	<plugins>
		<plugin interceptor="com.github.pagehelper.PageHelper">
			<!-- 设置数据库类型Oracle，MySQL，MarinDBName，SQLite，PostareSQL六种数据库 -->
			<property name="dialect" value="mysql"/>
		</plugin>
	</plugins>
</configuration></span>

jdbc.properties：数据库连接信息配置，主要包括jdbc.driver数据库驱动；jdbc.url数据库连接地址；jdbc.username连接用户名称；jdbc.password用户密码

2.5.2.2，spring配置

（为了分层解耦，为每一层，每一个用途的spring配置，都进行了单独配置）

1，首先：applicationContext-dao.xml，在这一层，主要配置数据库连接池（用到jdbc.properties数据库连接信息），Mybatis配置信息，加载Mybatis的mapper对象

<span style="font-family:KaiTi_GB2312;font-size:18px;"><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">

	<!-- 数据库连接池 -->
	<!-- 加载配置文件 -->
	<context:property-placeholder location="classpath:resource/*.properties" />
	<!-- 数据库连接池 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
		destroy-method="close">
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="maxActive" value="10" />
		<property name="minIdle" value="5" />
	</bean>
	<!-- 让spring管理sqlsessionfactory-->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 数据库连接池 -->
		<property name="dataSource" ref="dataSource" />
		<!-- 加载mybatis的全局配置文件 -->
		<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" />
	</bean>
	<!-- 配置扫描包，加载mapper代理对象 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="Angel.mapper" />
		
	</bean>
</beans></span>

2，applicationContext-service.xml，主要就是配置扫描包，一句话：

<span style="font-family:KaiTi_GB2312;font-size:18px;"><!-- 扫描包，加载service实现类 -->
	<context:component-scan base-package="Angel.service"></context:component-scan>
</span>

3，applicationContext-trans.xml事务传播配置，AOP切面配置

<span style="font-family:KaiTi_GB2312;font-size:18px;"><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">
	<!-- 事务管理器 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource" />
	</bean>
	<!-- 通知 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- 传播行为 -->
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="create*" propagation="REQUIRED" />
			<tx:method name="delete*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />
			<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="select*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
		</tx:attributes>
	</tx:advice>
	<!-- 切面 -->
	<aop:config>
		<aop:advisor advice-ref="txAdvice"
			pointcut="execution(* Angel.service.*.*(..))" />
	</aop:config>
</beans>
</span>

2.5.2.3，springMVC配置

<span style="font-family:KaiTi_GB2312;font-size:18px;"><?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.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.xsd">

	<context:component-scan base-package="Angel.controller" />
	<mvc:annotation-driven />
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp" />
	</bean>

	<!-- 资源映射 -->
	<mvc:resources location="/WEB-INF/css/" mapping="/css/**" />
	<mvc:resources location="/WEB-INF/js/" mapping="/js/**" />

	<!-- 当有文件上传需要时，定义文件上传解析器，在同时，也需要在pom文件中添加上传jar的依赖 -->
	<!--<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 设定默认编码 -->
		<property name="defaultEncoding" value="UTF-8"></property>
		<!-- 设定文件上传的最大值5MB，5*1024*1024 -->
		<property name="maxUploadSize" value="5242880"></property>
	</bean>-->


</beans>
</span>

2.5.2.4，web.xml配置

主要包括，SpringMVC前端控制器的启动，spring容器的启动配置，post乱码过滤

<span style="font-family:KaiTi_GB2312;font-size:18px;"><?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 version="2.5">
	<display-name>Angel-web</display-name>
	<welcome-file-list>
		<welcome-file>/WEB-INF/jsp/index.jsp</welcome-file>
	</welcome-file-list>

	<!-- 加载spring容器 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring/applicationContext-*.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- 解决post乱码过滤器 -->
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>utf-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<!-- springmvc的前端控制器 -->
	<servlet>
		<servlet-name>Angel-web</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring/springmvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>Angel-web</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app></span>

三、具体实例

3.1，pojo实例类

TbUser.java(篇幅所限，set和get方法略去)

<span style="font-family:KaiTi_GB2312;font-size:18px;">package Angel.pojo;

import java.util.Date;


public class TbUser {
    private Long id;

    private String username;

    private String password;

    private String phone;

    private String email;

    private Date created;

    private Date updated;</span>

3.2，mapper

3.2.1，mapper接口类TbUserMapper.java

<span style="font-family:KaiTi_GB2312;font-size:18px;">package Angel.mapper;

import Angel.pojo.TbUser;

public interface TbUserMapper {

    TbUser selectByName(String Name);
    
}</span>

3.2.2，sql实现文件TbUserMapper.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"></pre><pre name="code" class="html"><?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 namespace="Angel.mapper.TbUserMapper" >
  <resultMap id="BaseResultMap" type="Angel.pojo.TbUser" >
    <id column="id" property="id" jdbcType="BIGINT" />
    <result column="username" property="username" jdbcType="VARCHAR" />
    <result column="password" property="password" jdbcType="VARCHAR" />
    <result column="phone" property="phone" jdbcType="VARCHAR" />
    <result column="email" property="email" jdbcType="VARCHAR" />
    <result column="created" property="created" jdbcType="TIMESTAMP" />
    <result column="updated" property="updated" jdbcType="TIMESTAMP" />
  </resultMap>
 
   <select id="selectByName" resultMap="BaseResultMap" parameterType="java.lang.String" >
    select 
    id, username, password,phone, email, created, updated
    from tb_user
    where username = #{username,jdbcType=VARCHAR}
  </select>
</mapper></span>

3.3，service

UserServiceImpl.java（接口省略）

<span style="font-family:KaiTi_GB2312;font-size:18px;">package Angel.service.impl;

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

import Angel.mapper.TbUserMapper;
import Angel.pojo.TbUser;
import Angel.service.UserService;

@Service(value="userService")
public class UserServiceImpl implements UserService {

	@Autowired
	private TbUserMapper userMapper;
	
	@Override
	public TbUser selectByName(String Name) {
		
		return userMapper.selectByName(Name);
	}
}
</span>

3.4，web-UserController.java

<span style="font-family:KaiTi_GB2312;font-size:18px;">package Angel.controller;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.http.HttpServletResponse;

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

import Angel.pojo.TbUser;
import Angel.service.UserService;

import com.fasterxml.jackson.databind.ObjectMapper;

@Controller
public class UserController {

	@Autowired
	private UserService userService;
	
	@RequestMapping("/user/find/{name}")
	public void insertUser(@PathVariable("name") String name,HttpServletResponse response) throws IOException {

		TbUser user=userService.selectByName(name);
		
		ObjectMapper objectMapper=new ObjectMapper();
		response.setContentType("application/json;charset=UTF-8");
		String json="";
		PrintWriter out=response.getWriter();
		if(user!=null){
			json=objectMapper.writeValueAsString(user);
			out.write(json);
		}else{
			out.write("error");
		}
	}
}</span>

3.5，JSP页面

<span style="font-family:KaiTi_GB2312;font-size:18px;"><%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";
%>

<!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>SSM-Angel</title>

<link rel="stylesheet" type="text/css" href="js/jquery-easyui-1.4.1/themes/default/easyui.css" />
<link rel="stylesheet" type="text/css" href="js/jquery-easyui-1.4.1/themes/icon.css" />

</head>
<body>
	
	<input type="text"   id="username"/><br><br>
	<span id="detail"></span><br><br>
	<input type="button" id="" value="查询" onclick="findUser()"/>

<script type="text/javascript" src="js/jquery-easyui-1.4.1/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery-easyui-1.4.1/jquery.easyui.min.js"></script>
<script type="text/javascript" src="js/jquery-easyui-1.4.1/locale/easyui-lang-zh_CN.js"></script>
<script type="text/javascript">
	function findUser(){
		var username=$("#username").val();
		$.post('<%=basePath%>user/find/'+username,function(data){
				//测试框架效果，输入的用户，在数据库中存在相应数据，因此未做判空处理
				if(data!="error"){
					var detailInfo="username:"+data.username+"   phone:"+data.phone+"  ...";
					$("#detail").text(detailInfo);
				}else{
					$.messager.alert("info","查询用户出错！")
				}
			});
	}
</script>
</body>
</html>
</span>

3.6，运行结果截图

四、总结

虽然用maven减少了jar下载引用的负担，但是，从SSM框架的搭建可以看出，引入了特别多的依赖，而且，当我在父工程进行引用后，在各个子模块需要用到的时候，还需要再次依赖引用，有什么方法可以解决这种依赖引用呢，接下来介绍spring boot