• Spring + SpringMVC + MyBatis


    1.需求说明
    实现用户通过数据库验证登录需求,采用Myeclipse+Tomcat 6.0+Mysql 5.0+JDK 1.6

    2.数据库表
    开发所用是Mysql数据库,只建立单张用户表T_USER,表结构如下:

    字段名称 数据类型 字段描述
    ID int 用户编号
    USERNAME VARCHAR 用户名
    PASSWORD VARCHAR 用户登录密码
    sql语句如下:
    CREATE TABLE `t_user` (
    `ID` int(11) NOT NULL auto_increment,
    `USERNAME` varchar(255) default NULL,
    `PASSWORD` varchar(255) default NULL,
    PRIMARY KEY (`ID`)
    );

    3.构建源代码目录


    4.用到的jar包(见附件Archive.rar)


    5.各项Xml配置文件详解
    (1)web.xml文件(Tomcat使用)
    服务器根据配置内容初始化spring框架,springmvc框架和log4j日志框架
    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="2.5"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

    <!-- 应用程序名称 -->
    <display-name>ISS</display-name>

    <!-- 应用程序描述说明性文字 -->
    <description>Spring,SpringMvc,Ibatis</description>

    <!-- ServletContext初始化参数 -->
    <context-param>
    <param-name>webAppRootKey</param-name>
    <param-value>spring_springmvc_ibatis.root</param-value>
    </context-param>
    <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>/WEB-INF/classes/log4j.properties</param-value>
    </context-param>
    <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/classes/applicationContext.xml</param-value>
    </context-param>

    <!-- 字符过滤,防止添加到数据库的数据为乱码 -->
    <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>
    <init-param>
    <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>

    <!-- web权限配置 -->
    <filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 配置监听器,用于初始化 -->
    <listener>
    <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- Servlet初始化参数,配置springmvc模块 -->
    <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/classes/springmvc-servlet.xml</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!-- 配置session存在时间 -->
    <session-config>
    <session-timeout>60</session-timeout>
    </session-config>

    <!-- 默认起始页面 -->
    <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!-- 异常跳转页面 -->
    <error-page>
    <exception-type>java.lang.Exception</exception-type>
    <location>/WEB-INF/jsp/exception.jsp</location>
    </error-page>
    </web-app>


    (2)springmvc-servlet.xml(Springmvc框架配置文件)
    该文件是springmvc框架配置文件,也是它的核心文件
    <?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"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!-- 自动扫描,完成bean创建和依赖注入 -->
    <context:component-scan base-package="com.archie"/>

    <!-- 启动Spring MVC的注解功能,完成请求和注解POJO的映射 -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

    <!-- 视图解析器 -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
    <property name="prefix" value="/WEB-INF/views/"/>
    <property name="suffix" value=".jsp"/>
    </bean>

    <!-- 异常解析器 -->
    <bean id="simpleMappingExceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
    <property name="exceptionMappings">
    <props>
    <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">common/fileerror</prop>
    </props>
    </property>
    </bean>
    </beans>

    (3)applicationContext.xml(Spring框架配置文件)
    <?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-3.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd" default-autowire="byName">

    <!-- 自动扫描 -->
    <context:component-scan base-package="com.archie"/>

    <!-- 启动spring注解,当自动扫描启动后,该配置可以去掉
    <context:annotation-config /> -->

    <!-- 启动spring注解,等同于 context:annotation-config
    <bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/>
    <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
    <bean class="org.springframework.beans.factory.annotation.PersistenceAnnotationBeanPostProcessor"/>
    <bean class="org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor"/> -->

    <!-- 配置数据源属性文件 -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
    <list>
    <value>jdbc.properties</value>
    </list>
    </property>
    </bean>

    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="${driver}"/>
    <property name="url" value="${url}"/>
    <property name="username" value="${username}"/>
    <property name="password" value="${password}"/>
    </bean>

    <!-- 配置SqlMapClient对象 -->
    <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
    <property name="configLocation" value="sqlMapConfig.xml"/>
    <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--根据sqlMapClien创建一个SqlMapClient模版类-->
    <bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate">
    <property name="sqlMapClient" ref="sqlMapClient"/>
    </bean>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 启动spring事务注解,事务注解尽在此 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

    <!-- 配置事务特性
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
    <tx:method name="select*" read-only="true" propagation="REQUIRED"/>
    <tx:method name="find*" read-only="true" propagation="REQUIRED"/>
    <tx:method name="save*" propagation="REQUIRED" isolation="REPEATABLE_READ"/>
    <tx:method name="update*" propagation="REQUIRED" isolation="REPEATABLE_READ"/>
    <tx:method name="add*" propagation="REQUIRED" isolation="REPEATABLE_READ"/>
    <tx:method name="delete*" propagation="REQUIRED" isolation="REPEATABLE_READ"/>
    <tx:method name="*" read-only="true"/>
    </tx:attributes>
    </tx:advice> -->

    <!-- 配置事务代理拦截器
    <bean id="baseTransactionProxy" abstract="true"
    class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
    <property name="transactionManager">
    <ref bean="transactionManager"/>
    </property>
    <property name="transactionAttributes">
    <props>
    <prop key="insert*">PROPAGATION_REQUIRED</prop>
    <prop key="update*">PROPAGATION_REQUIRED</prop>
    <prop key="delete*">PROPAGATION_REQUIRED</prop>
    <prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
    </props>
    </property>
    </bean> -->

    <!-- 配置哪些类的方法需要进行事务管理
    <aop:config>
    <aop:pointcut id="baseServiceMethods" expression="execution(* com.archie.service.*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="baseServiceMethods"/>
    </aop:config>
    <aop:aspectj-autoproxy /> -->

    <!-- 配置Dao实例
    <bean id="userDao" class="com.archie.dao.UserDao">
    <property name="sqlMapClient" ref="sqlMapClient"/>
    </bean> -->

    <!-- 配置Service实例
    <bean id="userService" class="com.archie.service.UserService">
    <property name="userDao" ref="userDao"/>
    </bean> -->

    <!-- 添加了事务的管理类
    <bean id="userManager" parent="baseTransactionProxy">
    <property name="target">
    <bean class="com.archie.service.UserService"/>
    </property>
    </bean> -->

    </beans>

    (4)jdbc.properties(数据源属性文件)
    数据源连接信息的源出处,目前配置了三种数据库Oracle,DB2和Mysql
    # Database Connectivity
    # Oracle
    #driver = oracle.jdbc.driver.OracleDriver
    #url = jdbc:oracle:thin:@localhost:1521:oracl
    #username = scott
    #password = tiger

    # DB2
    #driver = com.ibm.db2.jcc.DB2Driver
    #url = jdbc:db2://10.1.10.162:50000/mydb
    #username = root
    #password = root

    # Mysql
    driver = com.mysql.jdbc.Driver
    url = jdbc:mysql://localhost:3306/mydb?useUnicode=true&characterEncoding=utf-8
    username = root
    password = 1234
    initialPoolSize = 1
    minPoolSize = 1
    maxPoolSize =10

    (5)log4j.properties(log4j框架属性文件)
    log4j日志属性配置文件
    # log4j.properties
    log4j.rootLogger=warn,console

    log4j.appender.console=org.apache.log4j.ConsoleAppender
    log4j.appender.console.layout=org.apache.log4j.PatternLayout
    log4j.appender.console.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n
    log4j.appender.console.Encoding=GB18030

    log4j.appender.file=org.apache.log4j.RollingFileAppender
    log4j.appender.file.MaxFileSize=10240KB
    log4j.appender.file.MaxBackupIndex=100
    log4j.appender.file.Encoding=GB18030
    log4j.appender.file.layout=org.apache.log4j.PatternLayout
    log4j.appender.file.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n

    log4j.appender.ROLLING_FILE_CUSTOMER=org.apache.log4j.RollingFileAppender
    log4j.appender.ROLLING_FILE_CUSTOMER.Threshold=debug
    log4j.appender.ROLLING_FILE_CUSTOMER.Append=true
    log4j.appender.ROLLING_FILE_CUSTOMER.MaxFileSize=1024KB
    log4j.appender.ROLLING_FILE_CUSTOMER.MaxBackupIndex=30
    log4j.appender.ROLLING_FILE_CUSTOMER.layout=org.apache.log4j.PatternLayout
    log4j.appender.ROLLING_FILE_CUSTOMER.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n

    log4j.appender.ROLLING_FILE_WORKMANAGER=org.apache.log4j.RollingFileAppender
    log4j.appender.ROLLING_FILE_WORKMANAGER.Threshold=debug
    log4j.appender.ROLLING_FILE_WORKMANAGER.Append=true
    log4j.appender.ROLLING_FILE_WORKMANAGER.MaxFileSize=1024KB
    log4j.appender.ROLLING_FILE_WORKMANAGER.MaxBackupIndex=30
    log4j.appender.ROLLING_FILE_WORKMANAGER.layout=org.apache.log4j.PatternLayout
    log4j.appender.ROLLING_FILE_WORKMANAGER.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n

    log4j.appender.ROLLING_FILE_RSS=org.apache.log4j.RollingFileAppender
    log4j.appender.ROLLING_FILE_RSS.Threshold=debug
    log4j.appender.ROLLING_FILE_RSS.Append=true
    log4j.appender.ROLLING_FILE_RSS.MaxFileSize=1024KB
    log4j.appender.ROLLING_FILE_RSS.MaxBackupIndex=30
    log4j.appender.ROLLING_FILE_RSS.layout=org.apache.log4j.PatternLayout
    log4j.appender.ROLLING_FILE_RSS.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n

    (6)sqlMapConfig.xml(Ibatis框架配置文件)
    该文件主要负责指定sql映射文件,即与model层对象对应的映射文件
    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
    "http://www.ibatis.com/dtd/sql-map-config-2.dtd">
    <sqlMapConfig>
    <!-- 配置settings -->
    <settings lazyLoadingEnabled="true" useStatementNamespaces="false"/>

    <!-- 配置sql映射文件 -->
    <sqlMap resource="com/archie/model/User.xml"/>
    </sqlMapConfig>

    6.Java代码编写
    根据包目录,可以看出分成model层,dao层,service层和web层,另外附加test层,用于java环境测试
    (1)model层(User.java+User.xml)
    User.java代码
    package com.archie.model;

    public class User {

    private int id;
    private String username;
    private String password;

    public User(){

    }

    public User(int id){
    this.id = id;
    }

    public User(int id, String username){
    this.id = id;
    this.username = username;
    }

    public User(String username, String password) {
    this.username = username;
    this.password = password;
    }

    public User(int id, String username, String password){
    this.id = id;
    this.username = username;
    this.password = password;
    }

    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;
    }
    }
    User.xml代码(model层对象的sql映射文件,被dao层调用,本质是sql语句集合,所有相关的sql均于此)
    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
    "http://ibatis.apache.org/dtd/sql-map-2.dtd">
    <sqlMap namespace="User">

    <typeAlias alias="User" type="com.archie.model.User"/>

    <select id="findAllUser" resultClass="User" >
    select * from t_user
    </select>
    <select id="findUserByID" resultClass="User" parameterClass="int">
    select * from t_user where id=#id#
    </select>

    <select id="getTotalCount" resultClass="int">
    select count(*) from t_user
    </select>

    <select id="searchUsers" resultClass="User" parameterClass="User">
    select * from t_user
    <dynamic prepend="where">
    <!-- 模糊查询,用$表示文本替换,而用#表示替换PrepareStatement中的?号 -->
    <isNotEmpty prepend="and" property="username">
    (username like '%$username$%')
    </isNotEmpty>
    <isNotEmpty prepend="and" property="password">
    (password like '%$password$%')
    </isNotEmpty>
    </dynamic>
    </select>

    <select id="findUserByNameAndPassword" resultClass="User" parameterClass="User">
    select * from t_user where username=#username# and password=#password#
    </select>

    <insert id="insertUser" parameterClass="User">
    insert into t_user(id,username,password) values(null,#username#,#password#)
    </insert>

    <update id="updateUser" parameterClass="User">
    update t_user
    set username = #username#,
    password=#password#
    where id=#id#
    </update>

    <delete id="deleteUser" parameterClass="int">
    delete from t_user where id=#id#
    </delete>

    <delete id="deleteUserByLike" parameterClass="User">
    delete from t_user
    <dynamic prepend="where">
    <!-- 模糊查询,用$表示文本替换,而用#表示替换PrepareStatement中的?号 -->
    <isNotEmpty prepend="and" property="username">
    (username like '%$username$%')
    </isNotEmpty>
    <isNotEmpty prepend="and" property="password">
    (password like '%$password$%')
    </isNotEmpty>
    </dynamic>
    </delete>

    </sqlMap>

    (2)dao层(数据服务层,BaseDao.java+UserDao.java)
    BaseDao.java(公共Dao,其他Dao均继承它)
    package com.archie.dao;

    import javax.annotation.PostConstruct;
    import javax.annotation.Resource;

    import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;

    import com.ibatis.sqlmap.client.SqlMapClient;

    public class BaseDao extends SqlMapClientDaoSupport {

    @Resource(name="sqlMapClient") //通过bean名称注入
    private SqlMapClient sqlMapClient;

    @PostConstruct //完成sqlMapClient初始化工作
    public void initSqlMapClient(){
    super.setSqlMapClient(sqlMapClient);
    }
    }

    UserDao.java(user数据服务层)
    package com.archie.dao;

    import java.util.List;

    import org.springframework.stereotype.Component;
    import com.archie.model.User;

    @Component //将UserDao类注入到bean里面
    public class UserDao extends BaseDao {

    public boolean addUser(User user) throws Exception{
    User bean = (User)getSqlMapClientTemplate().insert("insertUser", user);
    return bean != null ? true : false;
    }

    public boolean deleteUser(int id) throws Exception{
    int result = getSqlMapClientTemplate().delete("deleteUser", id);
    return result > 0 ? true : false;
    }

    public User getUserById(int id) throws Exception{
    return (User)getSqlMapClientTemplate().queryForObject("findUserByID", id);
    }

    @SuppressWarnings("unchecked")
    public List getAllUsers() throws Exception{
    return getSqlMapClientTemplate().queryForList("findAllUser");
    }

    public boolean updateUser(User user) throws Exception{
    int result = getSqlMapClientTemplate().update("updateUser", user);
    return result > 0 ? true : false;
    }

    public User getUserByNameAndPassword(User user) throws Exception{
    return (User)getSqlMapClientTemplate().queryForObject("findUserByNameAndPassword", user);
    }

    public int getTotalCount() throws Exception{
    return (Integer)getSqlMapClientTemplate().queryForObject("getTotalCount");
    }

    @SuppressWarnings("unchecked")
    public List getUsersByLike(User user) throws Exception{
    return getSqlMapClientTemplate().queryForList("searchUsers", user);
    }

    public int deleteUserByLike(User user) throws Exception{
    int result = getSqlMapClientTemplate().delete("deleteUserByLike", user);
    if (result > 0) {
    System.out.println("模糊删除成功!");
    }else {
    System.out.println("没有匹配的记录1");
    }
    return result;
    }
    }

    (3)service层(业务服务层,UserService.java)
    UserService.java代码如下
    package com.archie.service;

    import java.util.List;

    import javax.annotation.Resource;

    import org.springframework.stereotype.Component;
    import org.springframework.transaction.annotation.Transactional;

    import com.archie.dao.UserDao;
    import com.archie.model.User;

    @Component //将UserService类注入到bean里面
    @Transactional //注入事务管理
    public class UserService {

    @Resource(name="userDao") // 通过名称注入到bean里面
    private UserDao userDao;

    public User login(User user) throws Exception{
    return userDao.getUserByNameAndPassword(user);
    }

    public void addUser(User user) throws Exception{
    userDao.addUser(user);
    }

    public void deleteUser(int id) throws Exception{
    boolean bool = userDao.deleteUser(id);
    if (!bool) {
    System.out.println("删除的记录不存在!");
    throw new RuntimeException();
    }
    }

    public User getUserById(int id) throws Exception{
    User user = userDao.getUserById(id);
    if (user == null) {
    return null;
    }
    return userDao.getUserById(id);
    }

    public void updateUser(User user) throws Exception{
    userDao.updateUser(user);
    }

    public int getTotalCount() throws Exception{
    return userDao.getTotalCount();
    }

    @SuppressWarnings("unchecked")
    public List getUsersByLike(User user) throws Exception{
    return userDao.getUsersByLike(user);
    }

    public int deleteUserByLike(User user) throws Exception{
    return userDao.deleteUserByLike(user);
    }

    public void insertUsers(List<User> list) throws Exception{
    for (int i = 0; i < list.size(); i++) {
    if (i > 3) {
    System.out.println("列表太长,中断事务");
    throw new RuntimeException("中断事务异常,当列表长度大于3的时候故意抛出,看看事务是否回滚");
    }
    User user = list.get(i);
    userDao.addUser(user);
    }
    }
    }

    (4)web层(界面控制层,UserController.java)
    UserController.java
    package com.archie.web;
    import javax.annotation.Resource;
    import javax.servlet.http.HttpSession;
    import javax.validation.Valid;
    import org.springframework.stereotype.Controller;
    import org.springframework.validation.BindingResult;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.servlet.ModelAndView;
    import com.archie.model.User;
    import com.archie.service.UserService;
    @Controller
    @RequestMapping("/user/*")
    public class UserController {

    @Resource(name="userService")
    private UserService userService;
    private final String LIST="redirect:/detail";

    /**
    * 登录
    * @param user
    * @param session
    * @return
    */
    @RequestMapping("/login")
    public ModelAndView login(@Valid User user,BindingResult result,HttpSession session) throws Exception{
    if(!result.hasErrors()){
    User loginUser=userService.login(user);
    if(loginUser!=null){
    session.setAttribute("USER", loginUser);
    return new ModelAndView(LIST);
    }else{
    return new ModelAndView("redirect:/");
    }
    }else{
    ModelAndView view=new ModelAndView();
    view.setViewName("redirect:/");
    view.addObject("error", result.getAllErrors());
    return view;
    }
    }

    /**
    * 跳转至添加页
    * @return
    */
    @RequestMapping(value="/toAdd",method=RequestMethod.GET)
    public ModelAndView toAdd(){
    return new ModelAndView("user/add");
    }
    /**
    * 保存
    * @param user
    * @return
    */
    @RequestMapping(value="/add",method=RequestMethod.POST)
    public ModelAndView add(@Valid User user,BindingResult result) throws Exception{
    if(result.hasErrors()){
    return new ModelAndView("user/add","error", result.getAllErrors());
    }else{
    userService.addUser(user);
    return new ModelAndView(LIST);
    }
    }
    /**
    * 根据ID删除
    * @param id
    * @return
    */
    @RequestMapping(value="/delete/{id}")
    public ModelAndView delete(@PathVariable int id) throws Exception{
    userService.deleteUser(id);
    return new ModelAndView(LIST);
    }
    /**
    * 跳转至编辑页面
    * @param id
    * @return
    */
    @RequestMapping(value="/edit/{id}")
    public ModelAndView edit(@PathVariable int id) throws Exception{
    User user=userService.getUserById(id);
    return new ModelAndView("user/edit","user",user);
    }
    /**
    * 编辑
    * @param user
    * @return
    */
    @RequestMapping(value="/edit")
    public ModelAndView update(@Valid User user,BindingResult result)throws Exception{
    ModelAndView view=new ModelAndView();
    if(result.hasErrors()){
    view.addObject("error", result.getAllErrors());
    view.setViewName("user/edit");
    return view;
    }else{
    userService.updateUser(user);
    return new ModelAndView(LIST);
    }
    }
    }

    (5)test层(Java环境下测试)
    TestUserController.java
    package com.archie.test;

    import java.util.ArrayList;
    import java.util.List;

    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;

    import com.archie.model.User;
    import com.archie.service.UserService;

    public class TestUserController {

    public static void main(String[] args) throws Exception{

    ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
    UserService userService = (UserService)context.getBean("userService");
    List<User> list = new ArrayList<User>();
    list.add(new User("wang", "wang"));
    list.add(new User("wang", "wang"));
    list.add(new User("wang", "wang"));
    userService.insertUsers(list);
    System.out.println("恭喜恭喜,添加成功!");
    userService.deleteUser(26);
    System.out.println("恭喜恭喜,删除成功!");
    User beanUser = userService.getUserById(21);
    if (beanUser != null) {
    System.out.println("恭喜恭喜,查找成功!");
    }else {
    System.out.println("不好意思,您所查找的用户不存在!");
    }
    int totalCount = userService.getTotalCount();
    System.out.println("TotalCount="+totalCount);
    int result = userService.deleteUserByLike(new User("wang","wang"));
    System.out.println("模糊删除的记录条数是:"+result);
    List users = userService.getUsersByLike(new User("meimei","1234"));
    if (users == null || users.size() == 0) {
    System.out.println("没有匹配的记录2");
    }else {
    for (int i = 0; i < users.size(); i++) {
    User user = (User)users.get(i);
    System.out.println("username="+user.getUsername()+",password="+user.getPassword());
    }
    }
    System.out.println("length="+users.size());
    }
    }

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  • 原文地址:https://www.cnblogs.com/dream-to-pku/p/5906142.html
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