spring mvc注解实现

    弃用了struts，用spring mvc框架做了几个项目，感觉都不错，而且使用了注解方式，可以省掉一大堆配置文件。本文主要介绍使用注解方式配置的spring mvc，之前写的spring3.0 mvc和rest小例子没有介绍到数据层的内容，现在这一篇补上。下面开始贴代码。

文中用的框架版本：spring 3,hibernate 3,没有的，自己上网下。

先说web.xml配置：

s3h3 contextConfigLocation classpath:applicationContext*.xml org.springframework.web.context.ContextLoaderListener spring org.springframework.web.servlet.DispatcherServlet 1 spring *.do index.jsp

 

spring-servlet,主要配置controller的信息

 

applicationContext.xml代码

${dataSource.dialect} ${dataSource.hbm2ddl.auto} update com.mvc.entity

 

hibernate.properties数据库连接配置

dataSource.password=123 dataSource.username=root dataSource.databaseName=test dataSource.driverClassName=com.mysql.jdbc.Driver dataSource.dialect=org.hibernate.dialect.MySQL5Dialect dataSource.serverName=localhost:3306 dataSource.url=jdbc:mysql://localhost:3306/test dataSource.properties=user=${dataSource.username};databaseName=${dataSource.databaseName};serverName=${dataSource.serverName};password=${dataSource.password} dataSource.hbm2ddl.auto=update

 

配置已经完成，下面开始例子

先在数据库建表，例子用的是mysql数据库

CREATE TABLE `test`.`student` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(45) NOT NULL, `psw` varchar(45) NOT NULL, PRIMARY KEY (`id`) )

 

建好表后，生成实体类

package com.mvc.entity; import java.io.Serializable; import javax.persistence.Basic; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name = "student") public class Student implements Serializable { private static final long serialVersionUID = 1L; @Id @Basic(optional = false) @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "id", nullable = false) private Integer id; @Column(name = "name") private String user; @Column(name = "psw") private String psw; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUser() { return user; } public void setUser(String user) { this.user = user; } public String getPsw() { return psw; } public void setPsw(String psw) { this.psw = psw; } }

 

 Dao层实现

package com.mvc.dao; import java.util.List; public interface EntityDao { public List