1.配置web.xml文件
<?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></display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>user</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>user</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
2.配置servlet文件
<?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/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-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.yaodian.lmis.controller"></context:component-scan>
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
3.实体对象
import javax.validation.constraints.Pattern;
import javax.validation.constraints.Size;
import org.hibernate.validator.constraints.NotEmpty;
public class User {
private String username;
private String nickname;
private String password;
private String email;
public User() {
super();
}
public User(String username, String nickname, String password, String email) {
super();
this.username = username;
this.nickname = nickname;
this.password = password;
this.email = email;
}
@NotEmpty(message="用户名不能为空!")
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getNickname() {
return nickname;
}
public void setNickname(String nickname) {
this.nickname = nickname;
}
@NotEmpty(message="密码不能为空!")
@Size(min=3,max=10,message="密码的长度必须大于3小于10")
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Pattern(regexp="(\\w+\\.*)\\w+@\\w+\\.[a-zA-Z]{2,6}",message="邮箱的格式不正确!")
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
4.控制器
package com.yaodian.lmis.controller;
import java.util.HashMap;
import java.util.Map;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import com.yaodian.lmis.entity.User;
@Controller
@RequestMapping("/user")
public class UserController {
private final static Map<String, User> users = new HashMap<String, User>();
public UserController() {
users.put("ldh", new User("ldh", "刘德华", "123", "123123"));
users.put("zxy", new User("zxy", "张学友", "123", "123123"));
users.put("gfc", new User("gfc", "郭富城", "123", "123123"));
users.put("lm", new User("lm", "黎明", "123", "123123"));
}
@RequestMapping("/users")
public String list(Model model) {
System.out.println(users.size());
model.addAttribute("users", users);
return "user/list";
}
@RequestMapping(value = "/add", method = RequestMethod.GET)
public String add(Model model) {
System.out.println("--------1----------");
model.addAttribute(new User());
return "user/add";
}
@RequestMapping(value = "/add", method = RequestMethod.POST)
public String add(@Valid User user,BindingResult binding) {
if(binding.hasErrors()){
return "user/add";
}
System.out.println("--------2----------");
users.put(user.getUsername(), user);
return InternalResourceViewResolver.REDIRECT_URL_PREFIX + "/user/users";
}
@RequestMapping(value="")
public String show(){
return null;
}
}