HttpClient发送get post接口请求/* * post
* @param url POST地址
* @param data POST数据NameValuePair[]
* @return 响应的参数
*/
public static String post(String url,NameValuePair[] data){---------------get里面没有data只有url String response = ""; HttpClient httpClient = new HttpClient();
PostMethod postMethod = new PostMethod(url); //设置请求编码
postMethod.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"GBK"); postMethod.setRequestBody(data); ---------------------------------get没有这一步-------- //设置请求头header参数
postMethod.setRequestHeader("userId","57601095");
postMethod.setRequestHeader("userSession","57601095");
postMethod.setRequestHeader("cityid","31000");
int statusCode = 0;
JSONObject jsonResult = null; try {
statusCode = httpClient.executeMethod(postMethod);
} catch (HttpException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} try {
byte[] b=postMethod.getResponseBody();
response = new String(b,"GBK");
jsonResult = JSONObject.fromObject(response); //将返回结果变成json格式
} catch (IOException e) {
e.printStackTrace();
}
postMethod.releaseConnection();
System.out.println("POST响应参数："+response);
return response;
}
下面是带有301重定向的完整代码
/**
* post
* @param url POST地址
* @param data POST数据NameValuePair[]
* @return 响应的参数
*/
public static String post(String url,NameValuePair[] data){------------------------get里面没有data只有url String response = "";
HttpClient httpClient = new HttpClient();
PostMethod postMethod = new PostMethod(url); //设置请求编码
postMethod.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"GBK");
postMethod.setRequestBody(data);--------------------------------get没有这一步 //设置请求头header参数
postMethod.setRequestHeader("userId","57601095");
postMethod.setRequestHeader("userSession","57601095");
postMethod.setRequestHeader("cityid","31000"); int statusCode = 0; try {
statusCode = httpClient.executeMethod(postMethod);
} catch (HttpException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} //301、302重定向
if(statusCode == HttpStatus.SC_MOVED_PERMANENTLY || statusCode == HttpStatus.SC_MOVED_TEMPORARILY){
Header locationHeader = postMethod.getResponseHeader("location");
String location = null;
if (locationHeader != null) {
location = locationHeader.getValue();
System.out.println("重定向跳转页面:" + location);
response= post(location,data);//用跳转后的页面重新请求。
} else {
System.err.println("location is null.");
}
}else {
System.out.println(postMethod.getStatusLine());
try {
byte[] b=postMethod.getResponseBody();
response = new String(b,"GBK");
} catch (IOException e) {
e.printStackTrace();
}
postMethod.releaseConnection();
} System.out.println("POST响应参数："+response); return response;
}