Spring4 MVC Hibernate4集成 Annotation
Spring4 MVC Hibernate4集成 Annotation
一、本文所用环境
二、工程目录
三、Maven添加依赖
四、新建数据库表
五、配置文件
六、Model层
七、DAO层
八、Service层
九、JSP页面和Controller
十、运行结果
已经充分封装DAO层和Service层
一、 本文所用环境
Spring4.0.3.RELEASE、Hibernate4.3.5.Final、Mysql
二、 工程目录
三、 Maven添加依赖
用Maven创建项目，pom.xml如下：
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.lei.demo</groupId> <artifactId>mvc-hibernate4</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>mvc-hibernate4 Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>4.0.3.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.0.3.RELEASE</version> </dependency> <!-- AspectJ --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.7.4</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.7.4</version> </dependency> <!-- Mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.29</version> </dependency> <!-- Hibernate4 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>4.3.5.Final</version> </dependency> <!-- for JPA, use hibernate-entitymanager instead of hibernate-core --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>4.3.5.Final</version> </dependency> <!-- 以下可选 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-envers</artifactId> <version>4.3.5.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-c3p0</artifactId> <version>4.3.5.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-proxool</artifactId> <version>4.3.5.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-infinispan</artifactId> <version>4.3.5.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-ehcache</artifactId> <version>4.3.5.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-commons-annotations</artifactId> <version>4.0.4.Final</version> </dependency> <dependency> <groupId>org.hibernate.javax.persistence</groupId> <artifactId>hibernate-jpa-2.1-api</artifactId> <version>1.0.0.Final</version> </dependency> <dependency> <groupId>org.jboss</groupId> <artifactId>jandex</artifactId> <version>1.1.0.Final</version> </dependency> <!-- 为了让Hibernate使用代理模式，需要javassist --> <dependency> <groupId>org.javassist</groupId> <artifactId>javassist</artifactId> <version>3.18.1-GA</version> </dependency> <dependency> <groupId>org.jboss.logging</groupId> <artifactId>jboss-logging</artifactId> <version>3.1.3.GA</version> </dependency> <dependency> <groupId>org.jboss.spec.javax.annotation</groupId> <artifactId>jboss-annotations-api_1.2_spec</artifactId> <version>1.0.0.Final</version> </dependency> <dependency> <groupId>antlr</groupId> <artifactId>antlr</artifactId> <version>2.7.7</version> </dependency> <dependency> <groupId>dom4j</groupId> <artifactId>dom4j</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.1</version> </dependency> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>commons-pool</groupId> <artifactId>commons-pool</artifactId> <version>1.4</version> </dependency> <dependency> <groupId>javax.transaction</groupId> <artifactId>jta</artifactId> <version>1.1</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>org.hibernate.javax.persistence</groupId> <artifactId>hibernate-jpa-2.0-api</artifactId> <version>1.0.0.Final</version> </dependency> <!-- tomcat7.0.35 数据库连接池 --> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-dbcp</artifactId> <version>7.0.35</version> </dependency> <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>16.0.1</version> </dependency> </dependencies> <build> <finalName>mvc-hibernate4</finalName> </build> </project>
四、 新建数据库表
数据库采用Mysql，新建user表，我们演示操作此表对user进行增删改查
DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `age` int(11) DEFAULT NULL, `nice_name` varchar(32) DEFAULT NULL, `name` varchar(32) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=29 DEFAULT CHARSET=utf8;
在model层下，创建Entity类Users.java见下
package com.lei.demo.model; import java.io.Serializable; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity(name="User") public class User implements Serializable { private static final long serialVersionUID = 1L; public User(){ super(); } @Id @GeneratedValue(strategy=GenerationType.AUTO) @Column(name="id") private Long id; @Column(name="name",length=32) private String name; @Column(name="age") private Integer age; @Column(name="nice_name",length=32) private String nice_name; @Override public String toString() { return "User [id=" + id + ", user_name=" + name + ", age=" + age + ", nice_name=" + nice_name + "]"; } public final Long getId() { return id; } public final void setId(Long id) { this.id = id; } public final String getName() { return name; } public final void setName(String name) { this.name = name; } public final Integer getAge() { return age; } public final void setAge(Integer age) { this.age = age; } public final String getNice_name() { return nice_name; } public final void setNice_name(String nice_name) { this.nice_name = nice_name; } }
五、 配置文件
1. 首先看一下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" xmlns:web="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>Archetype Created Web Application</display-name> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:/spring-*.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 定义DispatcherServlet --> <servlet> <servlet-name>mvc-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <!-- 默认/WEB-INF/[servlet名字]-servlet.xml加载上下文， 如果配置了contextConfigLocation参数， 将使用classpath:/mvc-dispatcher-servlet.xml加载上下文 --> <param-name>contextConfigLocation</param-name> <param-value>classpath:/mvc-dispatcher-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 拦截匹配的请求，这里所有请求采用名字为mvc-dispatcher的DispatcherServlet处理 --> <servlet-mapping> <servlet-name>mvc-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
2. mvc-dispatcher-servlet.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:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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/context http://www.springframework.org/schema/context/spring-context-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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd "> <!-- 启动自动扫描该包下所有的Bean(例如@Controller) --> <context:component-scan base-package="com.lei.demo" /> <!-- 基于注释的事务，当注释中发现@Transactional时，使用id为“transactionManager”的事务管理器 --> <!-- 如果没有设置transaction-manager的值，则spring以缺省默认的事务管理器来处理事务，默认事务管理器为第一个加载的事务管理器 --> <tx:annotation-driven transaction-manager="transactionManager"/> <!-- 定义视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix"> <value>/WEB-INF/jsp/</value> </property> <property name="suffix"> <value>.jsp</value> </property> </bean> </beans>
3. Spring-hibernate的整合
spring-hibernate.xml文件
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" 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 "> <!-- Hibernate4 --> <!-- 加载资源文件 其中包含变量信息，必须在Spring配置文件的最前面加载，即第一个加载--> <context:property-placeholder location="classpath:persistence-mysql.properties" /> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="packagesToScan"> <list> <!-- 可以加多个包 --> <value>com.lei.demo.model</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect">${hibernate.dialect}</prop> <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> </props> </property> </bean> <!-- 数据库映射 --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driverClassName}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.user}" /> <property name="password" value="${jdbc.pass}" /> </bean> <!-- 配置Hibernate事务管理器 --> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 配置事务异常封装 --> <bean id="persistenceExceptionTranslationPostProcessor" class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" /> </beans>
资源文件persistence-mysql.properties如下：
# jdbc.X
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.150.63:3306/test?createDatabaseIfNotExist=true
jdbc.user=root
jdbc.pass=root111111
# hibernate.X
hibernate.connection.driverClass=org.gjt.mm.mysql.Driver
hibernate.connection.url=jdbc:mysql://192.168.150.63:3306/test
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
hibernate.connection.username=root
hibernate.connection.password=root111111
hibernate.show_sql=true
六、 Model层
此处model层只有一个User类，见前文user.java。
七、 DAO层
DAO层包括3个包，各个包中类如下：
com.lei.demo.dao.common: IOperations, AbstractHibernateDao
com.lei.demo.dao: IUserDao
com.lei.demo.dao.impl: UserDao
代码如下：
IOperations.java，通用的操作接口
package com.lei.demo.dao.common; import java.io.Serializable; import java.util.List; /* * 通用的操作接口 */ public interface IOperations<T extends Serializable> { T findOne(final long id); List<T> findAll(); void create(final T entity); T update(final T entity); void delete(final T entity); void deleteById(final long entityId); }
AbstractHibernateDao.java实现了IOperations接口，所有DAO都需要继承此类，这样就避免重复的写一些CURD。
package com.lei.demo.dao.common; import java.io.Serializable; import java.util.List; import javax.annotation.Resource; import org.hibernate.Session; import org.hibernate.SessionFactory; import com.google.common.base.Preconditions; @SuppressWarnings("unchecked") public abstract class AbstractHibernateDao<T extends Serializable> implements IOperations<T> { private Class<T> clazz; @Resource(name="sessionFactory") private SessionFactory sessionFactory; protected final void setClazz(final Class<T> clazzToSet) { this.clazz = Preconditions.checkNotNull(clazzToSet); } protected final Session getCurrentSession() { return sessionFactory.getCurrentSession(); } @Override public final T findOne(final long id) { return (T)getCurrentSession().get(clazz, id); } @Override public final List<T> findAll() { return getCurrentSession().createQuery("from " + clazz.getName()).list(); } @Override public final void create(final T entity) { Preconditions.checkNotNull(entity); // getCurrentSession().persist(entity); getCurrentSession().saveOrUpdate(entity); } @Override public final T update(final T entity) { Preconditions.checkNotNull(entity); getCurrentSession().update(entity); return entity; //return (T)getCurrentSession().merge(entity); } @Override public final void delete(final T entity) { Preconditions.checkNotNull(entity); getCurrentSession().delete(entity); } @Override public final void deleteById(final long entityId) { final T entity = findOne(entityId); Preconditions.checkState(entity != null); delete(entity); } }
IUserDao.java具体的DAO的接口，继承了IOperations
package com.lei.demo.dao; import com.lei.demo.dao.common.IOperations; import com.lei.demo.model.User; public interface IUserDao extends IOperations<User> { //让所有的DAO都实现基本的操作接口IOperations //除了实现IOperations中的基本操作之外，特定的DAO要实现其他操作可以在对应的接口DAO中定义方法， //此处UserDao的接口IUserDao不需要实现其他方法 }
UserDao.java具体的DAO实现
package com.lei.demo.dao.impl; import org.springframework.stereotype.Repository; import com.lei.demo.dao.IUserDao; import com.lei.demo.dao.common.AbstractHibernateDao; import com.lei.demo.model.User; @Repository("usersDao") public class UserDao extends AbstractHibernateDao<User> implements IUserDao { public UserDao() { super(); setClazz(User.class); } }
至此，DAO层已经完成。
八、 Service层
Service层包括3个包，各个包中类如下：
com.lei.demo.service.common: AbstractService
com.lei.demo.service: IUserService
com.lei.demo.service.impl: UserService
AbstractService.java,实现了IOperations，所有的Service都要继承此类，这样就避免了重复实现通用的方法，注意类前的注释“@Transactional
”，表示其中所有的方法都需要引入事务，代码如下：
package com.lei.demo.service.common; import java.io.Serializable; import java.util.List; import org.springframework.transaction.annotation.Transactional; import com.lei.demo.dao.common.IOperations; @Transactional public abstract class AbstractService<T extends Serializable> implements IOperations<T> { protected abstract IOperations<T> getDao(); @Override public T findOne(final long id) { return getDao().findOne(id); } @Override public List<T> findAll() { return getDao().findAll(); } @Override public void create(final T entity) { getDao().create(entity); } @Override public T update(final T entity) { return getDao().update(entity); } @Override public void delete(final T entity) { getDao().delete(entity); } @Override public void deleteById(long entityId) { getDao().deleteById(entityId); } }
IUserService.java接口
package com.lei.demo.service; import com.lei.demo.dao.common.IOperations; import com.lei.demo.model.User; public interface IUserService extends IOperations<User> { }
UserService.java，具体的Service实现类就很简单了，因为大部分通用的方法都在其继承的虚类AbstractService中实现了，这里只要注入具体的dao即可：
package com.lei.demo.service.impl; import javax.annotation.Resource; import org.springframework.stereotype.Service; import com.lei.demo.dao.IUserDao; import com.lei.demo.dao.common.IOperations; import com.lei.demo.model.User; import com.lei.demo.service.IUserService; import com.lei.demo.service.common.AbstractService; @Service("userService") public class UserService extends AbstractService<User> implements IUserService { @Resource(name="usersDao") private IUserDao dao; public UserService() { super(); } @Override protected IOperations<User> getDao() { return this.dao; } }
九、 JSP页面和Controller
Jsp页面放在WEB-INF/jsp/user/…下，分别是user的增删改查页面，
WEB-INF/jsp/user/add.jsp
WEB-INF/jsp/user/edit.jsp
WEB-INF/jsp/user/list.jsp
WEB-INF/jsp/user/detail.jsp
以下是具体页面代码
WEB-INF/jsp/user/add.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!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>Add User</title> </head> <body> <form action="add" method="post"> Name:<input id="name" name="name" type="text" /> <br> Nice Name:<input id="nice_name" name="nice_name" type="text" /> <br> Age:<input id="age" name="age" type="text" /> <br> <input type="submit" value="提交"> </form> </body> </html>
WEB-INF/jsp/user/edit.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%> <!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>Edit user</title> </head> <body> <c:url var="saveUrl" value="/user/save/${userAttribute.id }" /> <form:form modelAttribute="userAttribute" action="${saveUrl }"> <table> <tr> <td>ID:</td> <td><form:input path="id" readonly="true"/></td> </tr> <tr> <td>Name:</td> <td><form:input path="name"/></td> </tr> <tr> <td>Nice name:</td> <td><form:input path="nice_name"/></td> </tr> <tr> <td>Age:</td> <td><form:input path="age"/></td> </tr> </table> <input type="submit" value="Save"> </form:form> </body> </html>
WEB-INF/jsp/user/list.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!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>User List</title> </head> <body> <a href="add">Add</a> <table> <tr> <td>ID</td> <td>Name</td> <td>NiceName</td> <td>Age</td> </tr> <c:forEach var="user" items="${userList }" > <tr> <td>${user.id }</td> <td>${user.name }</td> <td>${user.nice_name }</td> <td>${user.age }</td> <td><a href="show/${user.id }">详细</a></td> <td><a href="edit/${user.id }">编辑</a></td> <td><a href="del/${user.id }">删除</a></td> </tr> </c:forEach> </table> </body> </html>
WEB-INF/jsp/user/detail.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!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>Show user</title> </head> <body> <c:out value="${user.id }"></c:out> <br> <c:out value="${user.name }"></c:out> <br> <c:out value="${user.nice_name }"></c:out> <br> <c:out value="${user.age }"></c:out> </body> </html>
写Controller访问上边的jsp，UserController.java
package com.lei.demo.controller; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; 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.lei.demo.model.User; import com.lei.demo.service.IUserService; @Controller @RequestMapping("/user") public class UserController { @Resource(name="userService") private IUserService userService; @RequestMapping(value="/count",method=RequestMethod.GET) public ModelAndView userCount() { int count = userService.findAll().size(); ModelAndView mv = new ModelAndView(); mv.addObject("userCount", count); mv.setViewName("user/userCount"); return mv; } @RequestMapping(value="/list",method=RequestMethod.GET) public ModelAndView getUserlist(Model model){ ModelAndView mv = new ModelAndView(); List<User> userList = userService.findAll(); System.out.println("log======table 'user' all records:"+userList.size()); mv.addObject("userList", userList); mv.setViewName("user/list"); return mv; } @RequestMapping(value="/add",method=RequestMethod.GET) public ModelAndView getAdd(){ ModelAndView mv = new ModelAndView(); mv.setViewName("user/add"); return mv; } @RequestMapping(value="/add",method=RequestMethod.POST) public String add(@ModelAttribute("user") User user){ userService.create(user); return "redirect:/user/list"; } @RequestMapping(value="/show/{userid}",method=RequestMethod.GET) public ModelAndView show(@PathVariable Long userid){ User user = userService.findOne(userid); ModelAndView mv = new ModelAndView(); mv.addObject("user", user); mv.setViewName("user/detail"); return mv; } @RequestMapping(value="/del/{userid}",method=RequestMethod.GET) public String del(@PathVariable Long userid){ userService.deleteById(userid); return "redirect:/user/list"; } @RequestMapping(value="/edit/{userid}",method=RequestMethod.GET) public ModelAndView getEdit(@PathVariable Long userid,Model model){ User user = userService.findOne(userid); model.addAttribute("userAttribute", user); ModelAndView mv = new ModelAndView(); mv.setViewName("user/edit"); return mv; } @RequestMapping(value="/save/{userid}",method=RequestMethod.POST) public String saveEdit(@ModelAttribute("userAttribute") User user,@PathVariable Long userid){ userService.update(user); return "redirect:/user/list"; } }
十、 运行结果
友情赞助
如果您喜欢此文，感觉对您工作有帮助，预期领导会给您涨工资，不妨小额赞助一下，让我有动力继续努力。
赞助方式1：打开支付宝App，使用“扫一扫”付款，付款码见下图，别忘了付款留言哦！
赞助方式2： 如果您有微信钱包，请打开微信，使用“扫一扫”付款，付款码见下图
转载请注明出处！
