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public static String sendGet(String url, String param, boolean isEncoder, int timeout) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + (isEncoder?HtcUtil.getURLEncoderString(param):param);
URL realUrl = new URL(urlNameString);
// 打开和URL之间的连接
URLConnection connection = realUrl.openConnection();
connection.setConnectTimeout(timeout);
connection.setReadTimeout(timeout);
// 设置通用的请求属性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
connection.setRequestProperty("Accept-Charset", "utf-8");
connection.setRequestProperty("contentType", "utf-8");
connection.setRequestProperty("Access-Control-Allow-Origin", "*");
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
Map<String, List<String>> map = connection.getHeaderFields();
// 遍历所有的响应头字段
for (String key : map.keySet()) {
// System.out.println(key + "--->" + map.get(key));
}
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(
connection.getInputStream(),"utf-8"));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送GET请求出现异常!");
// e.printStackTrace();
result = "{\"type\":\"1\",\"error\":\""+e+"\"}";
}
// 使用finally块来关闭输入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}