Java网络请求示例-优快云博客

本文提供了一个使用Java进行HTTP GET请求的示例代码，演示了如何构造URL、发送请求并处理响应，最后将响应内容保存到本地文件。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

try
{
int fr = 0 ;
int to = 9 ;
String keyStr = "KFC" ;
String urlStr = http://localhost:8080/xxxx;
urlStr += "?ver=1&keyword=" + URLEncoder.encode(keyStr, "UTF-8") + "&qtype=11&fr="+ fr +"&to="+ to ;
urlStr += "&mobid=0000000000";
URL url = new URL(urlStr);
System.out.println(urlStr);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
//connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "close");
System.out.println(connection.getResponseCode() + "==============");
if(connection.getResponseCode() == 200 )
{
InputStream is = connection.getInputStream();

FileOutputStream fos = new FileOutputStream("e:/test.txt");
byte[] b = new byte[1024];
int len = 0 ;
int j = 0 ;
while((len = is.read(b)) != -1 )
{
for (int i = 0; i < len; i++) {
j ++ ;
byte c = b[i];
System.out.println(j + "-->" + c);
}
j = 0 ;
j = j + len ;
fos.write(b, 0, len);
}
fos.close() ;
}

} catch (MalformedURLException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}