在mysql数据库中建立一个user表,已对user的增删改查为例,整合springmvc、spring、hibernate。
1.web.xml中的配置:①spring监听器;②spring mvc的servlet;③字符编码过滤器。
<!-- spring 监听器的配置 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:beans.xml</param-value>
</context-param>
<!-- springMVC 配置 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:user-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- 字符编码过滤器 -->
<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>
<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>
2.spring mvc配置文件 user-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"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<!-- <context:component-scan base-package="com.yawn.controller"></context:component-scan> -->
<context:component-scan base-package="com.yawn.*" use-default-filters="false">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<mvc:annotation-driven/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
3.spring的配置文件beans.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:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="com.yawn.*">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<context:property-placeholder location="classpath:db.properties"/>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="initialPoolSize" value="${jdbc.initialPoolSize}"></property>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property>
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<!-- 配置dataSource数据源 -->
<property name="dataSource" ref="dataSource"></property>
<!--
引入hibernate配置文件
<property name="configLocation" value="classpath:hibernate.cfg.xml" />
-->
<!-- 使用此配置就可以不再引入hibernate配置文件 -->
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<!-- <prop key="hibernate.mappings">com.yawm.entity.User</prop> -->
</props>
</property>
<!-- 使用此配置代替以前hibernate中使用的mappingLocations配置 -->
<property name="annotatedClasses">
<list>
<value>com.yawn.entity.User</value>
</list>
</property>
</bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<aop:aspectj-autoproxy />
</beans>
3.1.db.properties数据库属性配置文件:
######################################
## configuration of database ##
######################################
jdbc.jdbcUrl=jdbc\:mysql\://localhost\:3306/volunteer?useUnicode\=true&characterEncoding\=utf8
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=root
jdbc.initialPoolSize=20
jdbc.maxPoolSize=50
4.controller的设计:
package com.yawn.controller;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
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 com.yawn.entity.User;
import com.yawn.service.UserService;
@Controller
public class UserController {
@Autowired
private UserService userService;
public UserController() {
}
@RequestMapping("getAll")
private List<User> getAll() {
return userService.getAll();
}
@RequestMapping(value="updateUser/{id}", method={RequestMethod.GET})
private String updateUser(@PathVariable int id, Map<String,User> map){
map.put("user", userService.getUserById(id));
return "updateUser";
}
@RequestMapping(value="updateUser", method={RequestMethod.POST})
private String updateUser(User user){
userService.updateUser(user);
return "redirect:getAll.do";
}
@RequestMapping(value="deleteUser/{id}", method={RequestMethod.GET})
private String deleteUser(@PathVariable int id){
userService.deleteUser(id);
return "redirect:/getAll.do";
}
@RequestMapping(value="addUser", method={RequestMethod.GET})
private void addUser(){
// 或者使用静态资源都可以跳转到addUser.jsp页面
}
@RequestMapping(value="addUser", method={RequestMethod.POST})
private String addUser(User user, BindingResult result){
System.out.println(result);
userService.addUser(user);
return "redirect:/getAll.do";
}
}
5.service的设计:
package com.yawn.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.yawn.dao.UserDao;
import com.yawn.entity.User;
@Service
public class UserService {
@Autowired
private UserDao userDao;
public UserService() {
}
public List<User> getAll(){
return userDao.getAll();
}
public boolean updateUser(User user){
return userDao.updateUser(user);
}
public User getUserById(int id){
return userDao.getUserById(id);
}
public boolean deleteUser(int id) {
return userDao.deleteUser(id);
}
public boolean addUser(User user) {
return userDao.addUser(user);
}
}
6.dao的设计:
package com.yawn.dao;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import com.yawn.entity.User;
@Repository
public class UserDao {
@Autowired
private SessionFactory sessionFactory;
public UserDao() {
}
@SuppressWarnings("unchecked")
public List<User> getAll() {
Session session = getSession();
String hql = "from User";
Query query = session.createQuery(hql);
return query.list();
}
public boolean updateUser(User user) {
Session session = getSession();
Transaction tx = session.beginTransaction();
session.update(user);
tx.commit();
session.close();
return true;
}
public User getUserById(int id) {
return (User) getSession().get(User.class, id);
}
public boolean deleteUser(int id) {
User user = new User();
user.setId(id);
Session session = getSession();
Transaction tx = session.beginTransaction();
session.delete(user);
tx.commit();
session.close();
return true;
}
public boolean addUser(User user) {
Session session = getSession();
Transaction tx = session.beginTransaction();
session.save(user);
tx.commit();
session.close();
return true;
}
private Session getSession() {
return sessionFactory.openSession();
}
}
7.entity的设计:
package com.yawn.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.validation.constraints.Max;
import org.hibernate.validator.constraints.Length;
@Entity
@Table(name="user")
public class User {
/*
* @Id 定义数据表的主键
* @GeneratedValue 定义主键(列)的生成策略
*/
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
@Column(length=24, unique=true, nullable=false)
// @Length(max=24, min=3, message="name的长度在3~24之间")
private String name;
@Column(length=24, nullable=false)
private String password;
@Column
// @Max(value=88, message="age不能大于88")
private int age;
public User() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "User [id=" + id + ", name=" + name + ", password=" + password
+ ", age=" + age + "]";
}
}
8.页面设计:
-----------------addUser.jsp---------------------
<form action="/user2/addUser.do" method="post">
name:<input name="name"><br>
password:<input name="password"><br>
age:<input name="age"><br>
<input type="submit" value="添加">
</form>
-----------------getAll.jsp----------------------
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<c:forEach var="u" items="${userList }">
<h3>${u.id } | ${u.name } | ${u.password } | ${u.age } |
<a href="deleteUser/${u.id }.do">删除</a>
<a href="updateUser/${u.id }.do">修改</a>
</h3>
</c:forEach>
---------------updateUser.jsp--------------------
<form action="/user2/updateUser.do" method="post">
<input name="id" type="hidden" value="${user.id }">
name:<input name="name" value="${user.name }"><br>
password:<input name="password" value="${user.password }"><br>
age:<input name="age" value="${user.age }"><br>
<input type="submit" value="确定修改">
</form>