@Autowired

private RestTemplate httpRestTemplate;	   

	String code= request.getParameter("code");

    		URI url = new URI("http://10.20.60.107:8088/ssoserver/moc2/token");

	    	// 参数拼装

	    	LinkedMultiValueMap<String, String> postParam = new LinkedMultiValueMap<String, String>() ;

	    	postParam.add("grant_type", "authorization_code");

	    	postParam.add("client_id", "222");

	    	postParam.add("client_secret", "45B6E9F1D9A4F10873EB7B2B9BC2CB9AEC11E6AF4ED50980734E62ABFDE91210");

	    	postParam.add("redirect_uri", "http://10.20.60.107:8088/ssoserver/third/oauth/login/callback");

	    	postParam.add("code", code);

	    	ResponseEntity<JSONObject> forEntity = httpRestTemplate.postForEntity(url, postParam, JSONObject.class);

	    	JSONObject object = forEntity.getBody();

	    	String accessToken = object.getString("access_token");