HTTP请求发送工具类

//请求发送工具类
public class HttpClientUtil {

private static HttpClient httpClient = new HttpClient();
private static Logger log = Logger.getLogger(HttpClientUtil.class);

public static String doPost(String url, NameValuePair[] postData) {
PostMethod method = new PostMethod(url);
method.setRequestBody(postData);
int statusCode = 0;
String response = null;
try {
statusCode = httpClient.executeMethod(method);
if (statusCode == HttpStatus.SC_OK) {
response = new String(method.getResponseBodyAsString().getBytes("GBK"));
}
} catch (Exception e) {
e.printStackTrace();
log.error(e, e.fillInStackTrace());
} finally {
method.releaseConnection();
}
return response;
}
}
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//发送方法
public String senda2b(JsonObject jsonObject){
String currentTime = getCurrentTimeString();
List<NameValuePair> postData = new ArrayList<NameValuePair>();
postData.add(new NameValuePair("venderId", "123456"));
postData.add(new NameValuePair("timestamp", currentTime));
...
if(jsonObject != null){
for(Entry<String,JsonElement> entry: jsonObject.entrySet()){
if(!entry.getValue().isJsonObject()){//判断获取的值是不是JsonOb类型的
postData.add(new NameValuePair(entry.getKey(), entry.getValue().getAsString()));
}else{
postData.add(new NameValuePair(entry.getKey(), entry.getValue().toString().replaceAll("\\{|\\}", "\"")));

}
}
}
String response = HttpClientUtil.doPost(url, (NameValuePair[])postData.toArray(new NameValuePair[0]));
if(response == null){
response = "request error: method: "+method;
}
return response;
}


public String getCurrentTimeString() {
Date nowDate=new Date(System.currentTimeMillis());
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return sdf.format(nowDate);
}