spring MVC+spring+hibernate项目整合入门实例

1.新建一个web项目，添加所需要的jar包，修改web.xml配置文件

  <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/hib-config.xml,/WEB-INF/web-config.xml,/WEB-INF/service-config.xml,/WEB-INF/dao-config.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>

2.新建实体User

package com.qm.entity;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;


@Entity
public class User {
	@Id
	@GeneratedValue(strategy=GenerationType.AUTO)
	private int id;
	private String name;
	private String pwd;
	
	public User() {
	}
	
	public User(String name, String pwd) {
		this.name = name;
		this.pwd = pwd;
	}
	
	public User(int id, String name, String pwd) {
		super();
		this.id = id;
		this.name = name;
		this.pwd = pwd;
	}

	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 getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	
	
}

3.新建hib-config.xml配置文件，关于数据库的配置

<context:component-scan  base-package="com.qm"/>   

	<aop:aspectj-autoproxy />
	
		
	<bean id="dataSource"  
            class="org.apache.commons.dbcp.BasicDataSource">  
            <property name="driverClassName"  
                value="com.mysql.jdbc.Driver">  
            </property>  
            <property name="url" value="jdbc:mysql://localhost:3306/ssh?characterEncoding=UTF-8"></property>  
            <property name="username" value="root"></property>  
            <property name="password" value="root"></property>
    </bean>  

   <bean id="sessionFactory"  
       class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">  
           <property name="dataSource">  
               <ref bean="dataSource" />  
           </property>
           <property name="hibernateProperties">  
               <props>  
         
                   <prop key="hibernate.dialect">  
                       org.hibernate.dialect.MySQLDialect  
                   </prop>  
                   <prop key="hibernate.show_sql">true</prop>
                   <prop key="hibernate.hbm2ddl.auto">update</prop>
               </props>
           </property>
		<property name="packagesToScan">
			<value>com.qm.entity</value>
		</property>
   </bean>  

4.新建UserDao UserService UserContorll

	public void add(User u){
		this.getHibernateTemplate().save(u);
	}

private UserDao userDao;
	
	public void add(String name,String pwd){
		User u=new User();
		u.setName(name);
		u.setPwd(pwd);
		userDao.add(u);
	}
	public UserDao getUserDao() {
		return userDao;
	}

	public void setUserDao(UserDao userDao) {
		this.userDao = userDao;
	}

private UserService userService;
	public ModelAndView handleRequest(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		userService.add(request.getParameter("name"), request.getParameter("pwd"));
		User u=new User();
		request.setAttribute("a", "welcome "+request.getParameter("name"));
		return new ModelAndView("index");
	}
	public UserService getUserService() {
		return userService;
	}
	public void setUserService(UserService userService) {
		this.userService = userService;
	}

5.新建dao-config.xml service-config.xml web-config.xml 注入

	<bean id="userDao" class="com.qm.dao.UserDao">
	  <property name="sessionFactory" ref="sessionFactory"></property>
	</bean>

<bean id="userService" class="com.qm.service.UserService">
		<property name="userDao" ref="userDao"></property>
	</bean>

    <bean id="paraMethodResolver"
        class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
        <property name="paramName" value="action"/>
        <property name="defaultMethodName" value="list"/>
    </bean>
  
    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView"/>
        <!--<property name="prefix" value="/myjsp/"/>-->
        <property name="suffix" value=".jsp"/>
    </bean>

    <bean id="urlMapping"
          class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="user.do">userController</prop>
            </props>
        </property>
    </bean>

<bean id="userController" class="com.qm.action.UserController">
	<property name="userService" ref="userService"></property>
</bean>

现在打开浏览器输入http://localhost:8080/springmvc01/reg.jsp

输入用户名小全，跳转到http://localhost/springmvc01/user.do。

此时页面乱码，这不是传到数据库时的乱码，是从页面传到控制层的乱码，此时，在web.xml加入编码过滤器

<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>