package com.mmt.test.urlConnection;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StreamTokenizer;
import java.net.HttpURLConnection;
import java.net.URL;

public class URLConnection_GET {

public static void main(String args[]){
String urlPath = “http://www.besti.edu.cn”;
String encodeType = “UTF-8”;
String resultString = getWEBPageContentByURLPath(urlPath, encodeType);
System.out.println(resultString);
}

public static String getWEBPageContentByURLPath(String urlPath,String encodeType){
String resultString = null ;

InputStream inputStream = getInputStreamByURLPath(urlPath, encodeType);
resultString = streamToString(inputStream, encodeType);
return resultString ;
}

private static InputStream getInputStreamByURLPath(String urlPath,String encodeType){

InputStream inputStream = null ;
URL url = null ;
try {
url = new URL(urlPath );

HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setConnectTimeout(3000);
httpURLConnection.setDoInput(true);
httpURLConnection.setRequestMethod(“GET”);

int responseCode = httpURLConnection.getResponseCode();
if(responseCode ==200){
inputStream = httpURLConnection.getInputStream();
}
} catch (Exception e) {
e.printStackTrace();
}

return inputStream ;
}

private static String streamToString(InputStream inputStream,String encodeType){
String resultString = null ;

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
int len = 0;
byte data[]=new byte[1024];
try {
while((len=inputStream.read(data))!=-1){
byteArrayOutputStream.write(data,0,len);
}
byte[]allData = byteArrayOutputStream.toByteArray();
resultString = new String(allData,encodeType);
} catch (IOException e) {
e.printStackTrace();
}

return resultString ;
}

}

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本文链接：https://www.cnblogs.com/mmtBlog/p/10051753.html