SpringMVC 3.x
博文目录
- 数据库及表的建立
- pom.xml
- springmvc-servlet.xml
- web.xml
- applicationContext.xml
- jdbc.properties
- src/main/java中的代码
- jsp文件
SpringMVC与Hibernate整合
先不说为什么，一口气达到实现对数据库CURD的操作！！！
BaseDao算是一个帮助类，你可以使用你喜欢的任何样式的JDBC！
使用MySQL建立数据库：
CREATE DATABASE `log`; CREATE TABLE t_user( id INT AUTO_INCREMENT PRIMARY KEY, username VARCHAR(255), `password` VARCHAR(512));
Maven项目：pom.xml
<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.hyx</groupId>
<artifactId>springmvc</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvc 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>
<!-- SpringMVC核心jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
<!-- springmvc连接数据库需要的jar -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.4.RELEASE</version>
</dependency>
<!-- ************************************ -->
<!-- Hibernate相关jar -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.2.5.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<version>4.2.5.Final</version>
</dependency>
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>2.7.2</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.26</version>
</dependency>
<!-- javax提供的annotation -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- **************************** -->
<!-- 用于对@ResponseBody注解的支持 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- 提供对c标签的支持 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- servlet api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
<build>
<finalName>springmvc</finalName>
<!-- maven的jetty服务器插件 -->
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<configuration>
<scanIntervalSeconds>10</scanIntervalSeconds>
<webApp>
<contextPath>/</contextPath>
</webApp>
<!-- 修改jetty的默认端口 -->
<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>80</port>
<maxIdleTime>60000</maxIdleTime>
</connector>
</connectors>
</configuration>
</plugin>
</plugins>
</build>
</project>
webapp/WEB-INF/springmvc-servlet.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: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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <context:component-scan base-package="com.cn.controller"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <mvc:annotation-driven/> <!-- 静态资源 --> <mvc:resources location="/static/" mapping="/static/**"/> <!-- 视图控制器 --> <mvc:view-controller path="/" view-name="user/user"/> <!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/WEB-INF/views/"/> <property name="suffix" value=".jsp"/> </bean> </beans>
webapp/WEB-INF/web.xml:
<?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"> <display-name>Archetype Created Web Application</display-name> <!-- spring-orm-hibernate4的OpenSessionInViewFilter --> <filter> <filter-name>opensessioninview</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> </filter> <filter-mapping> <filter-name>opensessioninview</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置springmvc servlet --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <!-- / 表示所有的请求都要经过此serlvet --> <url-pattern>/</url-pattern> </servlet-mapping> <!-- spring的监听器 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext*.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> </web-app>
src/main/resources下的applicationContext.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 自动扫描并管理类 -->
<context:component-scan base-package="com.cn">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 加载classpath中的jdbc配置文件 -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 配置数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 基于Hibernate的事务管理器 -->
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 开启基于注解的事务管理器 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
<!-- SessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<!-- 实体类pojo所在包-->
<property name="packagesToScan" value="com.cn.pojo"/>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>
</props>
</property>
</bean>
</beans>
src/main/resources下的数据库连接配置文件：jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql:///log jdbc.username=root jdbc.password=root
webapp/static/img/下的图片：1.jpg
User:
package com.cn.pojo;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="t_user")
public class User {
private Integer id;
private String username;
private String password;
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
public Integer getId() {
return id;
}
public void setId(Integer 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;
}
}
BaseDao:
package com.cn.core.orm;
import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import javax.inject.Inject;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.hibernate.transform.ResultTransformer;
@SuppressWarnings({"unchecked","unused"})
public class BaseDao<T,PK extends Serializable> {
private Class<?> clazz;
public BaseDao() {
ParameterizedType type = (ParameterizedType) this.getClass().getGenericSuperclass();
Type[] types = type.getActualTypeArguments();
clazz = (Class<?>) types[0];
}
private SessionFactory sessionFactory;
@Inject
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public Session getSession() {
return sessionFactory.getCurrentSession();
}
public void save(T pojo) {
getSession().saveOrUpdate(pojo);
}
public T findById(PK id) {
return (T) getSession().get(clazz, id);
}
public T findByProperty(String propertyName,Object value) {
Criteria c = getSession().createCriteria(clazz);
c.add(Restrictions.eq(propertyName, value));
return (T) c.uniqueResult();
}
public List<T> findListByProperty(String propertyName,Object value) {
Criteria c = getSession().createCriteria(clazz);
c.add(Restrictions.eq(propertyName, value));
return c.list();
}
public void del(PK id) {
getSession().delete(findById(id));
}
public List<T> findAll() {
Criteria c = getSession().createCriteria(clazz);
return c.list();
}
}
UserDao:
package com.cn.dao;
import javax.inject.Named;
import com.cn.core.orm.BaseDao;
import com.cn.pojo.User;
@Named
public class UserDao extends BaseDao<User, Integer>{
}
UserService:
package com.cn.service;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Named;
import org.springframework.transaction.annotation.Transactional;
import com.cn.dao.UserDao;
import com.cn.pojo.User;
@Named
@Transactional
public class UserService {
@Inject
private UserDao userDao;
public void save(User user) {
userDao.save(user);
}
public List<User> findAll() {
return userDao.findAll();
}
public User findById(Integer id) {
return userDao.findById(id);
}
public void del(Integer id) {
userDao.del(id);
}
}
UserController:
package com.cn.controller;
import java.util.List;
import javax.inject.Inject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.cn.pojo.User;
import com.cn.service.UserService;
@Controller
@RequestMapping("/user")
public class UserController {
@Inject
private UserService userService;
@RequestMapping
public String show(Model model){
List<User> userList=userService.findAll();
model.addAttribute("userList", userList);
return "user/user";
}
@RequestMapping(value="/add",method=RequestMethod.GET)
public String addForm(){
return "user/add";
}
@RequestMapping(value="/add",method=RequestMethod.POST)
public String add(User user){
userService.save(user);
return "redirect:/user";
}
@RequestMapping(value="/edit/{id}",method=RequestMethod.GET)
public String editForm(@PathVariable Integer id,Model model){
System.out.println(id);
User user=userService.findById(id);
model.addAttribute("user", user);
return "user/edit";
}
@RequestMapping(value="/del/{id}")
public String del(@PathVariable Integer id){
userService.del(id);
return "redirect:/user";
}
}
webapp/WEB-INF/views/user/下的三个JSP文件：
user.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>用户列表</title>
</head>
<body>
<h1>用户列表---<a href="/user/add">添加用户</a></h1>
<ul>
<c:forEach items="${userList }" var="user">
<li>用户名：${user.username }----密码：${user.password }----<a href="/user/edit/${user.id}">修改用户</a>----<a href="/user/del/${user.id }">删除用户</a></li>
</c:forEach>
</ul>
<img alt="" src="/static/img/1.jpg">
</body>
</html>
add.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>添加用户</title>
</head>
<body>
<h1>添加用户</h1>
<form action="/user/add" method="post">
用户名：<input type="text" name="username"/> <br/>
密 码：<input type="text" name="password"/> <br/>
<input type="submit" value="提交"/>
</form>
</body>
</html>
edit.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>添加用户</title>
</head>
<body>
<h1>添加用户</h1>
<form action="/user/add" method="post">
<input type="hidden" name="id" value="${user.id }"/>
用户名：<input type="text" name="username" value="${user.username }"/> <br/>
密 码：<input type="text" name="password" value="${user.password }"/> <br/>
<input type="submit" value="提交"/>
</form>
</body>
</html>