当没有防火墙时,标准的 getUrlContent 可以正常工作。但是当我尝试在防火墙后面执行此操作时出现异常。
我尝试在 AVD 管理器中设置“http 代理服务器”,但没有成功。知道如何正确设置它吗?
顺便说一句:来自 android 文档“您可以使用 -verbose-proxy 选项来诊断代理连接问题。” -verbose-proxy 根本不是一个有效的选项。
protected static synchronized String getUrlContent(String url) throws ApiException {
if(url.equals("try")){
return "thanks";
}
if (sUserAgent == null) {
throw new ApiException("User-Agent string must be prepared");
}
// Create client and set our specific user-agent string
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(url);
request.setHeader("User-Agent", sUserAgent);
try {
HttpResponse response = client.execute(request);
// Check if server response is valid
StatusLine status = response.getStatusLine();
if (status.getStatusCode() != HTTP_STATUS_OK) {
throw new ApiException("Invalid response from server: " +
status.toString());
}
// Pull content stream from response
HttpEntity entity = response.getEntity();
InputStream inputStream = entity.getContent();
ByteArrayOutputStream content = new ByteArrayOutputStream();
// Read response into a buffered stream
int readBytes = 0;
while ((readBytes = inputStream.read(sBuffer)) != -1) {
content.write(sBuffer, 0, readBytes);
}
// Return result from buffered stream
return new String(content.toByteArray());
} catch (IOException e) {
throw new ApiException("Problem communicating with API", e);
}
}