同样的代码。我在java本身的main里面执行的时候可以获得文件的长度，可是在android的junit test里面时却是-1；求解释！String path="http://mirrors.ustc.edu.cn/eclipse/technology/epp/downloads/release/indigo/SR1/eclipse-jee-indigo-SR1-win32.zip";
URL url=new URL(path);
HttpURLConnection conn;
conn=(HttpURLConnection) url.openConnection();
//conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestMethod("GET");
conn.setConnectTimeout(6*1000);
int fileSize=conn.getContentLength();
URL url=new URL(path);
HttpURLConnection conn;
conn=(HttpURLConnection) url.openConnection();
//conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestMethod("GET");
conn.setConnectTimeout(6*1000);
int fileSize=conn.getContentLength();
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