2015. 4. 23. 18:11
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
public class URLConnectionPOST {
public static void main(String[] args) {
try {
// Construct data
String data = URLEncoder.encode("key1", "UTF-8") + "=" + URLEncoder.encode("value1", "UTF-8");
data += "&" + URLEncoder.encode("key2", "UTF-8") + "=" + URLEncoder.encode("홍길동", "UTF-8");
// Send data
URL url = new URL("http://localhost:80/TestWeb/sample.jsp");
URLConnection conn = url.openConnection();
// If you invoke the method setDoOutput(true) on the URLConnection, it will always use the POST method.
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(data);
wr.flush();
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));
String line;
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
wr.close();
rd.close();
}
catch (Exception e) {
}
}
}
try {
// Construct data
String data = URLEncoder.encode("key1", "UTF-8") + "=" + URLEncoder.encode("value1", "UTF-8");
data += "&" + URLEncoder.encode("key2", "UTF-8") + "=" + URLEncoder.encode("홍길동", "UTF-8");
// Send data
URL url = new URL("http://localhost:80/TestWeb/sample.jsp");
URLConnection conn = url.openConnection();
// If you invoke the method setDoOutput(true) on the URLConnection, it will always use the POST method.
conn.setDoOutput(true);
OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(data);
wr.flush();
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream(),"UTF-8"));
String line;
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
wr.close();
rd.close();
}
catch (Exception e) {
}
}
}
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<%
//request.setCharacterEncoding("UTF-8");
String value1 = request.getParameter("key1");
String value2 = request.getParameter("key2");
out.println("This is server response.");
out.println("key1="+value1);
out.println("key2="+value2);
%>
</body>
</html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
<%
//request.setCharacterEncoding("UTF-8");
String value1 = request.getParameter("key1");
String value2 = request.getParameter("key2");
out.println("This is server response.");
out.println("key1="+value1);
out.println("key2="+value2);
%>
</body>
</html>
URLConnectionPOST.java를 컴파일하고 위의 sample.jsp 를 포함한 Tomcat을 기동한 후에 URLConnectionPOST를 실행하면 다음과 같은 결과를 확인할 수 있다.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
This is server response.
key1=value1
key2=홍길동
</body>
</html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
</head>
<body>
This is server response.
key1=value1
key2=홍길동
</body>
</html>
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