// 获得Http客户端(可以理解为:你得先有一个浏览器;注意:实际上HttpClient与浏览器是不一样的) CloseableHttpClient httpClient = HttpClientBuilder.create().build(); // 创建Post请求 HttpPost httpPost = new HttpPost(WcsHttpUtil.httpUtil.agvs); // 设置ContentType(注:如果只是传普通参数的话,ContentType不一定非要用application/json) httpPost.setHeader("Content-Type", "application/json;charset=utf8"); // 响应模型 CloseableHttpResponse response = null; String jsonString = JSON.toJSONString(object); StringEntity entity = new StringEntity(jsonString, "UTF-8"); // post请求是将参数放在请求体里面传过去的;这里将entity放入post请求体中 httpPost.setEntity(entity); // 由客户端执行(发送)Post请求 response = httpClient.execute(httpPost); // 从响应模型中获取响应实体 HttpEntity responseEntity = response.getEntity(); 完善此代码接收数据为XML

可以将代码中的 "Content-Type" 改成 "application/xml;charset=utf-8"，并且将响应实体的内容转换为XML格式。修改后的代码如下所示：

CloseableHttpClient httpClient = HttpClientBuilder.create().build(); 

// 创建Post请求 
HttpPost httpPost = new HttpPost(WcsHttpUtil.httpUtil.agvs); 

// 设置ContentType为XML格式 
httpPost.setHeader("Content-Type", "application/xml;charset=utf-8"); 

// 响应模型 
CloseableHttpResponse response = null; 

String xmlString = /* 将对象转换为XML格式的字符串 */ ;

StringEntity entity = new StringEntity(xmlString, "UTF-8"); 

// 将entity放入post请求体中 
httpPost.setEntity(entity); 

// 由客户端执行(发送)Post请求 
response = httpClient.execute(httpPost); 

// 从响应模型中获取响应实体 
HttpEntity responseEntity = response.getEntity(); 

// 将响应实体的内容转换为XML格式 
String xmlResponse = EntityUtils.toString(responseEntity, "UTF-8");