请帮忙看看这个spring mvc的简单demo为何总是400错误

Question

本帖最后由 freeman932 于 2015-03-06 09:09:39 编辑

Answer 1

没人回答吗，主要的controller贴出来：package com.longflang.controller;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;import com.longflang.pojo.User;@Controller
public class DemoController {
@RequestMapping(value="getmv")
public ModelAndView getInfo(){

ModelAndView modelAndView = new ModelAndView();
//传String
modelAndView.addObject("title", "Return ModelAndView:");
//传Object
User u = new User("longflang","12");
modelAndView.addObject("user", u);
//传List
List<User> userlist = new ArrayList<User>();
userlist.add(new User("longflang1","123"));
userlist.add(new User("longflang2","345"));
userlist.add(new User("longflang3","45"));
modelAndView.addObject("list", userlist);
//传Map
Map<String, String> usermap = new HashMap<String, String>();
usermap.put("name", "longflang");
usermap.put("age", "234");
modelAndView.addObject("user", usermap);

modelAndView.setViewName("result");
return modelAndView;
}
@RequestMapping(value="string")
public String getInfo(Model model){

//传String
model.addAttribute("title", "return String:");
//传Object
User u = new User("longflang","12");
model.addAttribute("user", u);
//传List
List<User> userlist = new ArrayList<User>();
userlist.add(new User("longflang1","123"));
userlist.add(new User("longflang2","345"));
userlist.add(new User("longflang3","45"));
model.addAttribute("list", userlist);
//传Map
Map<String, String> usermap = new HashMap<String, String>();
usermap.put("name", "longflang");
usermap.put("age", "234");
model.addAttribute("map", usermap);

return "result";
}
@RequestMapping(value="strparam")
public String getInfo(@RequestParam("name") String name ,@RequestParam("age") String age,Model model){

//传String
model.addAttribute("title", "return String: @RequestParam");
//传Object
User u = new User(name,age);
model.addAttribute("user", u);
//传List
List<User> userlist = new ArrayList<User>();
userlist.add(new User(name,age));
userlist.add(new User(name,age));
userlist.add(new User(name,age));
model.addAttribute("list", userlist);
//传Map
Map<String, String> usermap = new HashMap<String, String>();
usermap.put("name", name);
usermap.put("age", age);
model.addAttribute("map", usermap);

return "result";
}
@RequestMapping(value="strparam/{name}")
public String getInfo2(@PathVariable("name") String name ,@RequestParam("age") String age,Model model){

//传String
model.addAttribute("title", "return String: @PathVariable");
//传Object
User u = new User(name,age);
model.addAttribute("user", u);
//传List
List<User> userlist = new ArrayList<User>();
userlist.add(new User(name,age));
userlist.add(new User(name,age));
userlist.add(new User(name,age));
model.addAttribute("list", userlist);
//传Map
Map<String, String> usermap = new HashMap<String, String>();
usermap.put("name", name);
usermap.put("age", age);
model.addAttribute("map", usermap);

return "result";
}

}

Answer 2

http400 错误4xx-客户端错误
发生错误，客户端似乎有问题。例如，客户端请求不存在的页面，客户端未提供有效的身份验证信息。400-错误的请求。
你确定你的页面和配置都没问题？？