Android开发使用js在webview中模拟登录

分类：Android, Java 阅读 (1,412)

2月 172022

转载请注明原文地址：http://bcoder.com/java/use-js-to-simulate-login-with-webview-in-android-development

1.首先要设置setJavaScriptEnabled为true，使用webview支持js

2.使用js脚本的document.getElementById找到用户名和密码输入框，并模拟输入用户名和密码的内容，然后找到提交按钮并模拟click点击。注意：js必须写成一个函数(示例代码中的jsLogin函数)运行。

    private void initViews() {
        mWebView = mRootView.findViewById(R.id.webView);
        //支持javascript
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.getSettings().setDomStorageEnabled(true);
        // 设置可以支持缩放
//        mWebView.getSettings().setSupportZoom(true);
        // 设置出现缩放工具
//        mWebView.getSettings().setBuiltInZoomControls(true);
        //扩大比例的缩放
        mWebView.getSettings().setUseWideViewPort(true);
        //自适应屏幕
        mWebView.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
        mWebView.getSettings().setLoadWithOverviewMode(true);


        //如果不设置WebViewClient，请求会跳转系统浏览器
        mWebView.setWebViewClient(new ZlWebViewClient() {

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {

                return false;
            }

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {

                return false;
            }

            @Override
            public void onPageFinished(final WebView view, String url) {
                super.onPageFinished(view, url);
                mCurrentUrl = view.getUrl();
                if(mServerConfig != null) {
                    view.loadUrl("javascript:function jsLogin(){document.getElementById('username').value='admin'; "
                            + "document.getElementById('password').value='admin'; "
                            + "document.getElementById('btnsubmit').click();}");
                    view.loadUrl("javascript:jsLogin()");
                }
            }
        });
    }

private void initViews() {

mWebView = mRootView.findViewById(R.id.webView);

//支持javascript

mWebView.getSettings().setJavaScriptEnabled(true);

mWebView.getSettings().setDomStorageEnabled(true);

// 设置可以支持缩放

// mWebView.getSettings().setSupportZoom(true);

// 设置出现缩放工具

// mWebView.getSettings().setBuiltInZoomControls(true);

//扩大比例的缩放

mWebView.getSettings().setUseWideViewPort(true);

//自适应屏幕

mWebView.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);

mWebView.getSettings().setLoadWithOverviewMode(true);

//如果不设置WebViewClient，请求会跳转系统浏览器

mWebView.setWebViewClient(new ZlWebViewClient() {

@Override

public boolean shouldOverrideUrlLoading(WebView view, String url) {

return false;

}

@Override

public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {

return false;

}

@Override

public void onPageFinished(final WebView view, String url) {

super.onPageFinished(view, url);

mCurrentUrl = view.getUrl();

if(mServerConfig != null) {

view.loadUrl("javascript:function jsLogin(){document.getElementById('username').value='admin'; "

+ "document.getElementById('password').value='admin'; "

+ "document.getElementById('btnsubmit').click();}");

view.loadUrl("javascript:jsLogin()");

}

});

}

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