请问各位,如果不收应答,如下例代码:
URL hp = new URL("http://123.123.123.123/servletMapping?a=3");
HttpURLConnection conn = (HttpURLConnection) hp.openConnection();
conn.setRequestMethod("GET");
conn.setDoOutput(true);
conn.connect();
这段代码是无法通讯到servletMapping的。再看下面代码:
URL hp = new URL("http://123.123.123.123/servletMapping?a=3");
HttpURLConnection conn = (HttpURLConnection) hp.openConnection();
conn.setRequestMethod("GET");
conn.setDoOutput(true);
conn.connect();
InputStream inputStream = conn.getInputStream();
inputStream.close();
这样是可以通讯成功的。
问题是:HttpURLConnection必须收到应答才能成功通讯吗?
URL hp = new URL("http://123.123.123.123/servletMapping?a=3");
HttpURLConnection conn = (HttpURLConnection) hp.openConnection();
conn.setRequestMethod("GET");
conn.setDoOutput(true);
conn.connect();
这段代码是无法通讯到servletMapping的。再看下面代码:
URL hp = new URL("http://123.123.123.123/servletMapping?a=3");
HttpURLConnection conn = (HttpURLConnection) hp.openConnection();
conn.setRequestMethod("GET");
conn.setDoOutput(true);
conn.connect();
InputStream inputStream = conn.getInputStream();
inputStream.close();
这样是可以通讯成功的。
问题是:HttpURLConnection必须收到应答才能成功通讯吗?
解决方案 »
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