Controller层的写法

项目中的两个Controller层实现类，一个是跳转到jsp页面，一个是以Json形式返回Map键值对。

跳转到jsp页面：

 package com.controller;

 import java.io.IOException;

 import javax.servlet.http.HttpServletRequest;

 import org.apache.commons.httpclient.HttpClient;

 import org.apache.commons.httpclient.HttpException;

 import org.apache.commons.httpclient.methods.PostMethod;

 import org.springframework.stereotype.Controller;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.servlet.ModelAndView;

 import util.AuthConfig;

 @Controller

 public class Operate {

     @RequestMapping(value="login.html")

     public ModelAndView requestPost(HttpServletRequest request){

         AuthConfig config = AuthConfig.getInstance();

         String server = config.getConfigParameter("server");

         String client_id = config.getConfigParameter("client_id");

         String client_secret = config.getConfigParameter("client_secret");

         String redirect_uri = config.getConfigParameter("redirect_uri");

         String scope = config.getConfigParameter("scope");

         String url = server+"AuthServer/oauth2/authorize?client_id="+client_id+"&client_secret="+client_secret+"&redirect_uri="+redirect_uri+"&response_type=code&scope="+scope;

         System.out.println(url);

         ModelAndView mav = new ModelAndView("login");

         mav.addObject("url", url);

         return mav;

     }

 }

一个是以Json形式返回Map键值对：

 package com.bupt.auth.controller;

 import java.util.HashMap;

 import java.util.Map;

 import com.bupt.oauth2.token.AuthKeyGenerator;

 import com.bupt.oauth2.token.DefaultAuthKeyGenerator;

 import com.bupt.oauth2.utils.*;

 import org.springframework.beans.factory.annotation.Autowired;

 import com.bupt.oauth2.common.OAuth2AccessToken;

 import org.springframework.web.bind.annotation.RequestBody;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.bind.annotation.ResponseBody;

 import org.springframework.web.bind.annotation.RestController;

 import com.bupt.auth.bussiness.RegisterAppBean;

 import com.bupt.auth.bussiness.RegisterBean;

 import com.bupt.auth.entity.User;

 import com.bupt.auth.exception.MyException;

 import com.bupt.auth.service.UserManager;

 import com.bupt.oauth2.peve.TokenHandler;

 import com.bupt.oauth2.common.util.OAuth2Utils;

 import com.bupt.oauth2.common.util.VePeUtils;

 @RestController

 public class RegisteController

 {

     @Autowired

     private TokenHandler tokenHandler;

     @Autowired

     private UserManager userManager;

     private AuthKeyGenerator authKeyGenerator = new DefaultAuthKeyGenerator();

     @RequestMapping(value="/registeruser.html",method=RequestMethod.POST)

     @ResponseBody

     public Map<String, Object> register(@RequestBody RegisterBean registerbean)

     {

         Map<String, Object> map = new HashMap<String, Object>();

         User user = new User();

         try{

             if(userManager.findByUsername(registerbean.getUser_name()) != null){

                 map.put("result", "fail");

                 map.put("info", "Username has already exist!!");

                 map.put("failcode", "602");

                 return map;

             }

         }catch(MyException e){

             map.put("result", "fail");

             map.put("info", e.getMessage());

             map.put("failcode", e.getFailCode());

             return map;

         }

         user.setUsername(registerbean.getUser_name());

         user.setPassword(registerbean.getUser_password());

         user.setInfo(registerbean.getInfo());

         userManager.addUser(user);

         createUserAccessToken(user);

         System.out.println(registerbean.getUser_name());

         map.put("result", "success");

         return map;

     }

     private void createUserAccessToken(User user)

     {

         String userName = user.getUsername();

         String userId = String.valueOf(user.getId());

         Map<String, String> requestParameters =  VePeUtils.buildRequestParameters(userId, null);

         tokenHandler.accessToken(requestParameters);

         //user 中存放authentication_id

         //与JdbcTokenStore中storeAccessToken方法中生成authentication_id相对应

         user.setAccesstoken(authKeyGenerator.extractKeyByVePeCredentials(user.toString()));

         userManager.updateUser(user);

     }

 }