Java解析URL并获取参数

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import java.io.UnsupportedEncodingException;
import java.net.URL;


public class IPutil {
public static String getReturnData(String urlString)
throws UnsupportedEncodingException {
String res = "";
try {
URL url = new URL(urlString);
java.net.HttpURLConnection conn = (java.net.HttpURLConnection) url
.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
java.io.BufferedReader in = new java.io.BufferedReader(
new java.io.InputStreamReader(conn.getInputStream(),
"UTF-8"));
String line;
while ((line = in.readLine()) != null) {
res += line + "\n";
}
in.close();
} catch (Exception e) {
/*
* logger.error("error in wapaction,and e is " + e.getMessage());
*/}
// System.out.println(res);
return res;
}

}

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