java调用第三方接口，获取接口返回的数据。 报错

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java接收远程调用的数据，得到的是如上个数的返回内容，我怎么写才能获取到值，现在使用的请求方法如下：

<code class=""java"">public static HttpResult postJsonData(String url, Map<String,String> params, String charset) throws Exception{

CloseableHttpClient httpclient = HttpClientUtil.createDefault();

HttpPost httpPost = new HttpPost(url);

//拼接参数

List<NameValuePair> list = new ArrayList<NameValuePair>();

for (Map.Entry<String, String> entry : params.entrySet()) {

String key = entry.getKey().toString();

String value = entry.getValue().toString();

System.out.println("key=" + key + " value=" + value);

NameValuePair pair = new BasicNameValuePair(key, value);

list.add(pair);

}

CloseableHttpResponse response=null;

try {

if(StringUtils.isEmpty(charset)){

charset = DEFAULT_CHARSET;

}

httpPost.setEntity(new UrlEncodedFormEntity(list,charset));

response = httpclient.execute(httpPost);

/**请求发送成功，并得到响应**/

if(response!=null && response.getStatusLine().getStatusCode() == HttpStatus.SC_OK){

HttpEntity httpEntity = response.getEntity();

if (httpEntity!=null){

System.out.println("响应内容为:" + EntityUtils.toString(httpEntity));

//System.out.println("响应内容为1:" + httpEntity.getContent());

}

String result=null;

try {

result = EntityUtils.toString(httpEntity,DEFAULT_CHARSET);

logger.info(result);

} catch (IOException e) {

throw e;

} finally {

EntityUtils.consume(httpEntity);

}

return JSON.parseObject(result,HttpResult.class);

//return httpEntity.getContent();

}else{

return null;

}

} catch (IOException e) {

throw new Exception(e.getMessage());

}finally {

try{

// 释放资源

if(response!=null){

response.close();

}

if(httpclient!=null){

httpclient.close();

}

}catch (IOException e1){

throw new Exception("CloseableHttpResponse close exception");

}

}  

}

求教怎么写才能把返回的值取到，现在用上边的方法会报如下错误：