Android studio webview只能打开置顶网页 ，却打不打开其他网页，求大佬帮忙

Question

Android studio webview只能打开置顶网页 ，却打不打开其他网页，求大佬帮忙

public class WebViewActivity extends AppCompatActivity {
    private WebView mWvMain;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_web_view);
        mWvMain=findViewById(R.id.wv);
        //加载本地html文件
        //mWvMain.loadUrl("file:///android_asset/tian.html");
        //加载网络URL
        mWvMain.getSettings().setJavaScriptEnabled(true);
        mWvMain.setWebViewClient(new MyWebViewClinet());
        mWvMain.getSettings().setLoadWithOverviewMode(true);//和setUseWideViewPort(true)一起解决网页自适应问题
        mWvMain.getSettings().setAppCacheEnabled(true);//是否使用缓存
        mWvMain.setWebChromeClient(new MyWebChromeClinet());
       mWvMain.loadUrl("https://m.baidu.com");
    }
   class MyWebViewClinet extends WebViewClient{
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
            view.loadUrl(request.getUrl().toString());
            return true;
        }

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            Log.d("WebView","onPageStarted.....");
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
            Log.d("WebView","onPageFinished.....");
            //mWvMain.loadUrl("javascript:alert('hello')");
            mWvMain.evaluateJavascript("javascript:alert('hello')",null);
        }
    }

    class  MyWebChromeClinet extends WebChromeClient{
        @Override
        public void onProgressChanged(WebView view, int newProgress) {
            super.onProgressChanged(view, newProgress);
        }

        @Override
        public void onReceivedTitle(WebView view, String title) {
            super.onReceivedTitle(view, title);
            setTitle(title);
        }
    }
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if(keyCode == KeyEvent.KEYCODE_BACK && mWvMain.canGoBack()){
          mWvMain.goBack();
          return true;
        }
        return super.onKeyDown(keyCode, event);
    }
}