JAVA 实现 GET、POST、PUT、DELETE HTTP请求
2020-12-13 04:01
标签：group public utils ack image 技术 auto tput delete 1、get 2、put
3、post
4、delete MAVEN 转载于：https://peter1981.iteye.com/blog/2347869 JAVA 实现 GET、POST、PUT、DELETE HTTP请求 标签：group public utils ack image 技术 auto tput delete 原文地址：https://www.cnblogs.com/java-h/p/11101723.html
public static String doGet(String strUrl ){
String strReturn="";
HttpGet httpGet = new HttpGet(strUrl);
CloseableHttpClient httpclient = null;
CloseableHttpResponse response1=null;
try {
httpclient = HttpClients.createDefault();
response1 = httpclient.execute(httpGet);
HttpEntity entity1 = response1.getEntity();
strReturn=EntityUtils.toString(entity1) ;
EntityUtils.consume(entity1);
}catch(Exception e){
e.printStackTrace();
}finally {
try {
if(response1!=null)
response1.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return strReturn;
}
public static String doPut(String strUrl,String param){
CloseableHttpClient httpclient = HttpClients.createDefault();
String strReturn="";
PutMethod httpput=new PutMethod(strUrl);
try {
if(param!=null)
{
RequestEntity entity = new StringRequestEntity(param, "application/json", "UTF-8");
httpput.setRequestEntity(entity);
}
httpClient.executeMethod(httpput);
byte[] bytes = httpput.getResponseBody();
strReturn= new String(bytes) ;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return strReturn;
}
public static String doPost(String requestUrl, String payload) {
CloseableHttpClient httpclient = HttpClients.createDefault();
String strReturn="";
PostMethod httpost = new PostMethod(requestUrl);
try {
if(payload!=null)
{
RequestEntity entity = new StringRequestEntity(payload, "application/json", "UTF-8");
httpost.setRequestEntity(entity);
}
httpClient.executeMethod(httpost);
byte[] bytes = httpost.getResponseBody();
strReturn= new String(bytes) ;
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return strReturn;
}
public static void doDelete(String urlToRead) throws Exception {
URL url = new URL(urlToRead);
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setDoOutput(true);
httpCon.setRequestProperty(
"Content-Type", "application/x-www-form-urlencoded" );
httpCon.setRequestMethod("DELETE");
httpCon.connect();
httpCon.disconnect();
}
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