2018-06-02 22:00:52 +08:00

73 lines
2.2 KiB
Java

package com.topjohnwu.magisk.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;
public class WebService {
public static String getString(String url) {
return getString(url, null);
}
public static String getString(String url, Map<String, String> header) {
HttpURLConnection conn = request(url, header);
if (conn == null) return "";
return getString(conn);
}
public static String getString(HttpURLConnection conn) {
try {
StringBuilder builder = new StringBuilder();
if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) {
try (BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()))) {
int len;
char buf[] = new char[4096];
while ((len = br.read(buf)) != -1) {
builder.append(buf, 0, len);
}
}
}
conn.disconnect();
return builder.toString();
} catch (IOException e) {
e.printStackTrace();
return "";
}
}
public static HttpURLConnection request(String address, Map<String, String> header) {
try {
URL url = new URL(address);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(15000);
conn.setConnectTimeout(15000);
if (header != null) {
for (Map.Entry<String, String> entry : header.entrySet()) {
conn.setRequestProperty(entry.getKey(), entry.getValue());
}
}
conn.connect();
if (header != null) {
header.clear();
for (Map.Entry<String, List<String>> entry : conn.getHeaderFields().entrySet()) {
List<String> l = entry.getValue();
header.put(entry.getKey(), l.get(l.size() - 1));
}
}
return conn;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}