?????????http?????????????????????????????????????????Щ?????Java??????????????Щget????post??????????漰????棬??????????
?????????????????Java????http?????????? HttpRequest.java
package org.javahttp.test;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
public class HttpRequest {
/**
* ?????URL????GET??????????
*
* @param url
* ?????????URL
* @param param
* ????????????????????? name1=value1&name2=value2 ???????
* @return URL ????????????????????
*/
public static String sendGet(String url?? String param) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
URL realUrl = new URL(urlNameString);
// ????URL????????
URLConnection connection = realUrl.openConnection();
// ????????????????
connection.setRequestProperty("accept"?? "*/*");
connection.setRequestProperty("connection"?? "Keep-Alive");
connection.setRequestProperty("user-agent"??
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// ????????????
connection.connect();
// ??????????????
//Map<String?? List<String>> map = connection.getHeaderFields();
// ???????е????????
//for (String key : map.keySet()) {
// System.out.println(key + "--->" + map.get(key));
//}
// ???? BufferedReader???????????URL?????
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()??"utf-8"));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("????GET???????????" + e);
e.printStackTrace();
}
// ???finally?????????????
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
/**
* ????? URL ????POST??????????
*
* @param url
* ????????? URL
* @param param
* ????????????????????? name1=value1&name2=value2 ???????
* @return ????????????????????
*/
public static String sendPost(String url?? String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
// ????URL????????
URLConnection conn = realUrl.openConnection();
// ????????????????
conn.setRequestProperty("accept"?? "*/*");
conn.setRequestProperty("connection"?? "Keep-Alive");
conn.setRequestProperty("user-agent"??
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// ????POST???????????????????
conn.setDoOutput(true);
conn.setDoInput(true);
// ???URLConnection?????????????
out = new PrintWriter(conn.getOutputStream());
// ???????????
out.print(param);
// flush??????????
out.flush();
// ????BufferedReader???????????URL?????
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()??"utf-8"));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("???? POST ???????????"+e);
e.printStackTrace();
}
//???finally????????????????????
finally{
try{
if(out!=null){
out.close();
}
if(in!=null){
in.close();
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
return result;
}
}