package com.java.util;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.fluent.Request;
import org.apache.http.message.BasicNameValuePair;
/**
* http请求工具类
* @author
* 需要引用fluent-hc-4.5.3.jar,httpclient-4.5.3.jar,httpcore-4.4.6.jar
*/
public class HttpRequestUtil {
private static final int connectTimeout = 10000;
private static final int socketTimeout = 60000;
/**
* http post请求
* @param url
* @param paramMap
* @return
*/
public static String xaHttpPost(String url, Map<String, Object> paramMap) {
String result = null;
long start = System.currentTimeMillis();
try {
UrlEncodedFormEntity formEntity = buildUrlEncodedFormEntity(paramMap);
result = Request.Post(url).useExpectContinue().connectTimeout(connectTimeout).socketTimeout(socketTimeout).body(formEntity).execute().returnContent().asString(Charset.forName("utf-8"));
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
long end = System.currentTimeMillis();
if((end-start)>30000){
System.err.println(url+" take "+(end-start)/1000+" 秒");
}
return result;
}
private static UrlEncodedFormEntity buildUrlEncodedFormEntity(Map<String, Object> paramMap) {
if (paramMap != null) {
List<NameValuePair> parameters = new ArrayList<NameValuePair>();
for (String s : paramMap.keySet()) {
if (paramMap.get(s).getClass().isArray()) {
Object[] arr = (Object[]) paramMap.get(s);
for (Object o : arr) {
parameters.add(new BasicNameValuePair(s, o.toString()));
}
} else {
parameters.add(new BasicNameValuePair(s, paramMap.get(s).toString()));
}
}
// 构建一个form表单式的实体
return new UrlEncodedFormEntity(parameters, Charset.forName("UTF-8"));
}
return null;
}
//测试代码:
//http://IP地址:89/gpsonline/GPSAPI?version=1&method=vLoginSystem&name=粤E055G3&pwd=000000
Map<String, Object> paramMap = new HashMap<String,Object>();
paramMap.put("version", "1");
paramMap.put("method", "vLoginSystem");
paramMap.put("name", "粤E055G3");
paramMap.put("pwd", "000000");
String result=HttpRequestUtil.xaHttpPost(HTTP_URL, paramMap);
//返回格式
{
"version":1,
"success":true,
"vid":4103747,
"vKey":"2e8b868d779f1e1c0696e04113e79003"
}
}
Http post请求
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转载自hanjava.iteye.com/blog/2390764
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