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);
    }
}