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);
     }
 }