Spring MVC 学习 之 - URL参数传递

原文资料:  Spring MVC 学习 之 - URL参数传递

//控制器类

package com.springmvc.controller;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.CookieValue;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.portlet.ModelAndView;import com.springmvc.entity.UserEntity;/* * @Controller     在类上注解，则此类将编程一个控制器，在项目启动 Spring 将自动扫描此类，并进行对应URL路由映射。 * @RequestMapping 指定URL映射路径，如果在控制器上配置 RequestMapping ，具体请求方法也配置路径则映射的路径为两者路径的叠加 * @ResponseBody   将注解方法对应的字符串直接返回 * @RequestParam   自动映射URL对应的参数到Action上面的数值，RequestParam 默认为必填参数。 * @PathVariable   获取@RequestMapping 配置指定格式的URL映射参数 */@Controller@RequestMapping("urlinfo")public class TController {private static final String ShowMsg = null;/* * 直接输出 HTML，或JSON 字符串 请求路径: /web1/urlinfo/getcontent.html?key=rhythmk * /web1/urlinfo/getcontent.json?key=rhythmk */@ResponseBody@RequestMapping(value = "/getcontent.**")public String GetContent(@RequestParam("key") String key,@RequestParam(value = "key2", required = false, defaultValue = "defaultValue") String key2) {System.out.println("getcontent 被调用");String result = "直接返回内容  - key:" + key + ",key2:" + key2;System.out.println(result);return result;}/* * RequestMapping 支持 Ant 风格的URL配置 ： 请求路径： * /urlinfo/geturlant/config.html?key=adddd */@ResponseBody@RequestMapping(value = "/geturlant/**.html")public String getUrlAnt(HttpServletRequest request) {String result = "?后面的参数为：" + request.getQueryString();return result;}/* * 配置指定格式的URL，映射到对应的参数 请求路径：/web1/urlinfo/geturlparam/12_123.html */@ResponseBody@RequestMapping(value = "/geturlparam/{id}_{menuId}.html")public ModelAndView getUrlParam(@PathVariable("id") String id,@PathVariable("menuId") String menuId) {ModelAndView mode = new ModelAndView(ShowMsg);mode.addObject("msg", "获取到的Id:" + id + ",menuId:" + menuId);return mode;}/* * 只接收Post 请求 请求路径：/web1/urlinfo/posturl.html */@ResponseBody@RequestMapping(value = "/posturl.html", method = RequestMethod.POST)public String UrlMethod(@RequestParam(value = "keyid", required = true, defaultValue = "defaultValue") String id) {return "只能是Post请求,获取到的Id:" + id;}/* * 写入 cookie 请求路径：/web1/urlinfo/writecookies.html?value=1 */@ResponseBody@RequestMapping("/writecookies.html")public ModelAndView writeCookies(@RequestParam String value,HttpServletResponse response) {response.addCookie(new Cookie("key", value));ModelAndView mode = new ModelAndView(ShowMsg);mode.addObject("msg", "cookies 写入成功");return mode;}/* * 通过 @CookieValue 获取对应的key的值 请求路径：/web1/urlinfo/getcookies.html */@ResponseBody@RequestMapping("/getcookies.html")public ModelAndView getCookie(@CookieValue("key") String cookvalue) {ModelAndView mode = new ModelAndView(ShowMsg);mode.addObject("msg", "cookies=" + cookvalue);return mode;}/* * 将 Servlet Api 作为参数传入 可以在action中直接使用 * HttpServletResponse，HttpServletRequest */@ResponseBody@RequestMapping("/servlet.html")public String Servlet1(HttpServletResponse response,HttpServletRequest request) {Boolean result = (request != null && response != null);ModelAndView mode = new ModelAndView();mode.addObject("msg", "result=" + result.toString());return ShowMsg;}/* * 根据URL传入的参数实例化对象 *  * 如： http://127.0.0.1:8080/web1/urlinfo/getobject.html?username=asf&age=22 */@ResponseBody@RequestMapping("getobject.html")public ModelAndView getObject(UserEntity user) {String result = "用户名称：" + user.getUsername().toString() + ",用户年龄:"+ user.getAge().toString();ModelAndView mode = new ModelAndView(ShowMsg);mode.addObject("msg", "result=" + result.toString());return mode;}/* * 实现页面跳转 /web1/urlinfo/redirectpage.html */@RequestMapping("/redirectpage.html")public String RedirectPage() {return "redirect:getcookies.html?r=10";}@ResponseBody@RequestMapping("/getuser.json")public UserEntity GetUser() {System.out.println("getuser");UserEntity model = new UserEntity();model.setAge("21");model.setUsername("王坤");return model;}}

//模型类

package com.springmvc.entity;public class UserEntity {private String username;// 用户名private String password;// 密码private String nickname;// 昵称private String gender;// 性别private String age;// 年龄public void setUsername(String value) {this.username = value;}public void setPassword(String value) {this.password = value;}public void setNickname(String value) {this.nickname = value;}public void setGender(String value) {this.gender = value;}public void setAge(String value) {this.age = value;}public String getUsername() {return this.username;}public String getPassword() {return this.password;}public String getNickname() {return this.nickname;}public String getGender() {return this.gender;}public String getAge() {return this.age;}}