我今天试了一下，可以建立Socket连接了，也能进行数据收发。js代码如下:
```javascript
function testSocket(){
if (plus.os.name == "Android") {
var Socket = plus.android.importClass("java.net.Socket");
var PrintWriter = plus.android.importClass("java.io.PrintWriter");
var BufferedWriter = plus.android.importClass("java.io.BufferedWriter");
var OutputStreamWriter = plus.android.importClass("java.io.OutputStreamWriter");
var BufferedReader = plus.android.importClass("java.io.BufferedReader");
var InputStreamReader = plus.android.importClass("java.io.InputStreamReader");

var socket = new Socket("192.168.23.8", 8080);

var outputStreamWriter = new OutputStreamWriter(socket.getOutputStream());
var bufferWriter = new BufferedWriter(outputStreamWriter);
var out = new PrintWriter(bufferWriter, true);
out.println("Conneted...");

var inputStreamReader = new InputStreamReader(socket.getInputStream());
var br = new BufferedReader(inputStreamReader);
var msg = br.readLine();

//while(true)
{
if(msg != null)
{
console.log(msg);
}
//msg = br.readLine();
}
}
//console.log(mac);
alert("Done");
}
```

HBuilderX 2.3.8 alpha 已修复此问题