The code copy is as follows:
/**
* Because FileUtils does not support it, add a method String content =
* FileUtils.readFileToString(FileUtils.toFile(new
* URL("http://www.baidu.com")));
*
* @param source
* @param encoding
* @return
* @throws IOException
*/
public static String readURLToString(URL source) throws IOException {
return readURLToString(source,null);
}
/**
* Because FileUtils does not support it, add a method
*
* <pre>
* String content = FileUtils.readFileToString(FileUtils.toFile(new URL(
* http://www.baidu.com)), gb2312);
* </pre>
*
* @param source
* @param encoding
* @return
* @throws IOException
*/
public static String readURLToString(URL source, String encoding)
throws IOException {
InputStream input = source.openStream();
try {
return IOUtils.toString(input, encoding);
} finally {
IOUtils.closeQuietly(input);
}
}
/**
* Read the content of the url (the method is post, multiple parameters can be specified)
* @param url
* @param encoding
* @param params map parameter (key is parameter name, value is parameter value)
* @return String
* @throws IOException
*/
public static String readURLToStringByPOST(URL url, String encoding,Map<String, String> params)
throws IOException {
HttpURLConnection con = null;
// Build request parameters
StringBuffer sb = new StringBuffer();
if (params != null) {
for (Entry<String, String> e : params.entrySet()) {
sb.append(e.getKey());
sb.append("=");
sb.append(e.getValue());
sb.append("&");
}
if(sb.length()>0){
sb.substring(0, sb.length() - 1);
}
}
// Try to send a request
try {
con = (HttpURLConnection) url.openConnection();
con.setRequestMethod("POST");
con.setDoOutput(true);
con.setDoInput(true);
con.setUseCaches(false);
con.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
OutputStreamWriter osw = new OutputStreamWriter(con.getOutputStream(),encoding);
if (params != null) {
osw.write(sb.toString());
}
osw.flush();
osw.close();
} catch (Exception e) {
LogFactory.getLog(FileUtils.class).error("POST("+url.toString()+")Error("+e.getMessage()+")",e);
} finally {
if (con != null) {
con.disconnect();
}
}
// Read the return content
StringBuffer buffer = new StringBuffer();
try {
BufferedReader br = new BufferedReader(new InputStreamReader(con
.getInputStream(), encoding));
String temp;
while ((temp = br.readLine()) != null) {
buffer.append(temp);
buffer.append("/n");
}
} catch (Exception e) {
e.printStackTrace();
}
return buffer.toString();
}