package com.lf.request;java
import java.io.BufferedReader;app
import java.io.FileNotFoundException;url
import java.io.IOException;spa
import java.io.InputStreamReader;.net
import java.io.OutputStreamWriter;對象
import java.net.SocketTimeoutException;資源
import java.net.URL;get
import java.net.URLConnection;it
import java.util.List;io
import java.util.Map;
import callbak.XResult;
import callbak.XResultModel;
public class XHttpRequest {
private static final int CONNECT_TIME=10*1000;//
private static final int READ_TIME=15*1000;
/**
* 向指定URL發送GET方法的請求
*
* @param url
* 發送請求的URL
* @param param
* 請求參數,請求參數應該是 name1=value1&name2=value2 的形式。
* @return URL 所表明遠程資源的響應結果
*/
public static String sendGet(String url, String param) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
URL realUrl = new URL(urlNameString);
// 打開和URL之間的鏈接
URLConnection connection = realUrl.openConnection();
// 設置通用的請求屬性
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.setConnectTimeout(CONNECT_TIME);
connection.setReadTimeout(READ_TIME);
// 創建實際的鏈接
connection.connect();
// 獲取全部響應頭字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍歷全部的響應頭字段
for (String key : map.keySet()) {
System.out.println(key + "--->" + map.get(key));
}
// 定義 BufferedReader輸入流來讀取URL的響應
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (SocketTimeoutException timeoutException) {
result=XResultModel.error(XResult.CONNECT_TIMED_OUT).toJsonStr();
}catch(FileNotFoundException fileNotFoundException){
result=XResultModel.error(XResult.REQUEST_URLORPARAM_ERROR).toJsonStr();
}catch(IOException ioException){
result=XResultModel.error(XResult.REQUEST_URLORPARAM_ERROR).toJsonStr();
}catch(Exception e){
result=XResultModel.error(e.toString()).toJsonStr();
}
// 使用finally塊來關閉輸入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
/**
* 向指定 URL 發送POST方法的請求
*
* @param url
* 發送請求的 URL
* @param param
* 請求參數,請求參數應該是 name1=value1&name2=value2 的形式。
* @return 所表明遠程資源的響應結果
*/
public static String sendPost(String url, String param) {
BufferedReader in = null;
OutputStreamWriter out=null;
String result = "";
try {
URL realUrl = new URL(url);
// 打開和URL之間的鏈接
URLConnection conn = realUrl.openConnection();
// 設置通用的請求屬性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
conn.setConnectTimeout(CONNECT_TIME);
conn.setReadTimeout(READ_TIME);
// 發送POST請求必須設置以下兩行
conn.setDoOutput(true);
conn.setDoInput(true);
// 獲取URLConnection對象對應的輸出流
out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
// 發送請求參數
out.append(param);
// flush輸出流的緩衝
out.flush();
// 定義BufferedReader輸入流來讀取URL的響應
in = new BufferedReader( new InputStreamReader(conn.getInputStream(),"UTF-8"));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (SocketTimeoutException timeoutException) {
result=XResultModel.error(XResult.CONNECT_TIMED_OUT).toJsonStr();
}catch(FileNotFoundException fileNotFoundException){
result=XResultModel.error(XResult.REQUEST_URLORPARAM_ERROR).toJsonStr();
}catch(IOException ioException){
result=XResultModel.error(XResult.REQUEST_URLORPARAM_ERROR).toJsonStr();
}catch(Exception e){
result=XResultModel.error(e.toString()).toJsonStr();
}
//使用finally塊來關閉輸出流、輸入流
finally{
try{
if(out!=null){
out.close();
}
if(in!=null){
in.close();
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
return result;
}
}