簡單http請求發送，可以自己設置contentType，跨域等信息
importjava.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.Charset;
import java.util.List;
import java.util.Map;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
/**
* Http工具
*/
public class HttpUtil {
/**
* 簡單post文本
* @param url 請求地址
* @param text 請求內容
*/
public static String simplePost( String url , String text ){
try {
CloseableHttpClient httpclient = HttpClientBuilder.create().build();
HttpPost httppost = new HttpPost(url );
StringEntity se = new StringEntity( text );
se.setContentType( "text/xml;charset=utf-8" );
httppost.setEntity( se );
httppost.addHeader( "Content-Type","application/json" );
CloseableHttpResponse response = httpclient.execute( httppost );
HttpEntity entity = response.getEntity();
String html = EntityUtils. toString( entity, "utf-8" );
httppost.releaseConnection();
return html ;
} catch (Exception e ) {
throw new RuntimeException( e );
}
}
/**
* 簡單post文本
* @param url 請求地址
* @param text 請求內容
*/
public static String simplePost( String url , String text, Map<String, String> headMap ){
try {
CloseableHttpClient httpclient = HttpClientBuilder.create().build();
HttpPost httppost = new HttpPost(url );
StringEntity se = new StringEntity( text );
se.setContentType( "text/xml;charset=utf-8" );
httppost.setEntity( se );
if( headMap != null ){
for( String hk : headMap .keySet() ){
httppost.addHeader( hk, headMap.get(hk ) );
}
}
CloseableHttpResponse response = httpclient.execute( httppost );
HttpEntity entity = response.getEntity();
String html = EntityUtils. toString( entity, "utf-8" );
httppost.releaseConnection();
return html ;
} catch (Exception e ) {
throw new RuntimeException( e );
}
}
/**
* ajax 請求get 方式
* @param url
* @return
*/
public static String simpleGet( String url ){
try {
CloseableHttpClient httpclient = HttpClientBuilder.create().build();
HttpGet httpget = new HttpGet(url );
httpget.setHeader( "Access-Control-Allow-Origin","*" );
CloseableHttpResponse response = httpclient.execute( httpget );
HttpEntity entity = response.getEntity();
String html = EntityUtils. toString( entity, "utf-8" );
httpget.releaseConnection();
return html ;
} catch (Exception e ) {
throw new RuntimeException( e );
}
}
}