搭建本地httpserver

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使用NanoHTTPD搭建android本地httpserver

搭建本地httpserver是为了解决android不支持本地ajax访问(当然可以通过对webview的设置也可以支持本地ajax访问，见文章末尾)

NanoHTTPD架包下载地址

1. 启动httpserver

// 在一个子线程中启动这个httpservermhttpserver = HttpServer.getHttpServer(8080, MainActivity.this);try {                    mhttpserver.start();                } catch (IOException e) {                    e.printStackTrace();                }

2. 销毁httpserver

@Override    protected void onDestroy() {        super.onDestroy();        if (mhttpserver != null) {            mhttpserver.stop();        }    }

3. httpserver实例

public class HttpServer extends NanoHTTPD {    private static HttpServer httpServerinstance = null;    public static HttpServer getHttpServer(int port, Context context) {        if (null == httpServerinstance) {            httpServerinstance = new HttpServer(port, context);        }        return httpServerinstance;    }    private HttpServer(int port, Context context) {        super(port);    }    @Override    public Response serve(IHTTPSession session) {        Log.i("lsw", session.getUri());        return responseCourseStream(session);    }    public Response responseCourseStream(IHTTPSession session) {        String uri = session.getUri();        String mime = getMimeTypeForFile(uri);        Log.i("lsw", "mime:" + mime);        uri = uri.substring(1);        try {//            InputStream is = mContext.getResources().getAssets().open(uri);// 根据不同的路径进行修改            FileInputStream is = new FileInputStream(Environment.getExternalStorageDirectory() + "/ubcoll/game/" + uri);            return newChunkedResponse(Response.Status.OK, mime, is);        } catch (IOException e) {            e.printStackTrace();        }        return newFixedLengthResponse("404");    }}

4. webview调用

// path 需与3中的路径连接起来，连成完整路径即可// 比如这里的path只传index.html,3中的路径就要指到index.html父目录的路径为止wv.loadUrl("http://localhost:8080/" + path);

5. 设置webview，支持本地ajax访问

//解决XMLHttpRequest cannot load file from android asset folderws.setJavaScriptEnabled(true);ws.setPluginState(PluginState.ON);ws.setAllowFileAccess(true);ws.setAllowContentAccess(true);ws.setAllowFileAccessFromFileURLs(true);ws.setAllowUniversalAccessFromFileURLs(true);

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