HttpUtil test

@Test
public void test() {
// String url = "http://localhost:8080/test/query";
StringBuffer paramtmp = new StringBuffer();
String baseValue = "{'url':'www.baidu.com'}";
paramtmp.append("jsonString=" + baseValue);
String result = HttpUtil.sendPost(url, paramtmp.toString());
System.out.println(result);

}

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public class HttpUtil {


public static String sendGet(String urlStr) {
try {
URL url = new URL(urlStr);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(6 * 1000);
if (conn.getResponseCode() != 200) // 从Internet获取网页,发送请求,将网页以流的形式读回来
throw new RuntimeException("请求url失败");
InputStream is = conn.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String response = "";
String readLine = null;
while ((readLine = br.readLine()) != null) {
// response = br.readLine();
response = response + readLine;
}
is.close();
br.close();
conn.disconnect();
return response;
} catch (Exception e) {
e.printStackTrace();
return null;
}


}


/**
* 向指定 URL 发送POST方法的请求
* 
* @param url
*            发送请求的 URL
* @param param
*            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
// 打开和URL之间的连接
URLConnection conn = realUrl.openConnection();
conn.setConnectTimeout(6 * 1000);
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
// 获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送 POST 请求出现异常！" + e);
e.printStackTrace();
}
// 使用finally块来关闭输出流、输入流
finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
return result;
}


}