微信摇一摇周边--获取access_token

public class ConTools {

private HttpURLConnection connection;

/**
* TangRen 2016-4-9 下午3:11:28
*/

public HttpURLConnection ConTools(String urlString) {
try {
URL url = new URL(urlString);
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
connection.setInstanceFollowRedirects(true);
connection.setRequestProperty("Content-Type",
"application/json; encoding=UTF-8");
connection.connect();

} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}

return connection;

}
}

public class ReadTools {
/**
* TangRen 2016-4-9 下午3:22:23
*/
private BufferedReader reader;
private StringBuffer sb;

public StringBuffer ReadTools(HttpURLConnection connection) {
try {
reader = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
sb = new StringBuffer("");
while ((line = reader.readLine()) != null) {
line = new String(line.getBytes(), "UTF-8");
sb.append(line);
}
reader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return sb;
}
}

public class ApplyToken {

/**
* @param args
* @author TangRen
* @date 2016-4-14 上午9:41:19
*/
private static ReadTools read;
private static HttpURLConnection connection;
static StringBuffer readTools = null;

public static void main(String[] args) {
// TODO Auto-generated method stub
ApplyToken();
}

public static String  ApplyToken() {
// TODO Auto-generated constructor stub
try {
URL url = new URL(AppURL.url_applytoken);
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("GET");
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
connection.setInstanceFollowRedirects(true);
connection.setRequestProperty("Content-Type",
"application/json; encoding=UTF-8");
connection.connect();

DataOutputStream outputStream=new DataOutputStream(connection.getOutputStream());

BufferedWriter writer=new BufferedWriter(new OutputStreamWriter(outputStream,"UTF-8"));

writer.flush();
writer.close();

read = new ReadTools();
readTools = read.ReadTools(connection);
System.out.println(readTools);
// 断开连接
connection.disconnect();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return readTools.toString();

}
}