Java模拟HttpClient进行Get和Post提交

使用Java模拟客户端进行提交，需要用到apache http client jar，这里用的是4.4版本

GET：

public void GetURL(){
String strResp="";
String url="www.baidu.com";
int statuscode=0;
CloseableHttpClient client=HttpClients.createDefault();
HttpGet request=new HttpGet(url);
try{
HttpResponse response=client.execute(request);
statuscode=response.getStatusLine().getStatusCode();
if(statuscode==200){
strResp=EntityUtils.toString(response.getEntity());//返回的内容
}
}catch(Exception e){
e.printStackTrace();
}

POST：

public String PostURL(){

String strResp="";
String url="www.baidu.com";
int statuscode=0;

CloseableHttpClient client = HttpClients.createDefault();

HttpPost request=new HttpPost(url);

JSONStringer jsonbody;

try{

jsonbody=(JSONStringer) new JSONStringer().object().key("vehicleID").value("8856017585").endObject();

StringEntity se=new StringEntity(jsonbody.toString(),"UTF-8");

se.setContentType("application/json");

request.setEntity(se); //设置要POST的内容，当前这里使用的是json格式

HttpResponse response=client.execute(request);

statuscode=response.getStatusLine().getStatusCode();

if(statuscode==HttpStatus.SC_OK){

strResp=new String(EntityUtils.toString(response.getEntity()).getBytes("UTF-8")); }

client.close();

　 }catch(Exception e){

　　 e.printStackTrace(); }

return strResp; }