Android加载WebView - 使用post请求加载

import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ImageView;
import android.widget.TextView;

import com.android.volley.RequestQueue;
import com.android.volley.toolbox.Volley;
import com.google.android.gms.appindexing.Action;
import com.google.android.gms.appindexing.AppIndex;
import com.google.android.gms.appindexing.Thing;
import com.google.android.gms.common.api.GoogleApiClient;

import org.apache.http.util.EncodingUtils;

import java.util.Iterator;
import java.util.Set;
import java.util.TreeMap;

public class WebBusinessActivity extends BaseActivity implements View.OnClickListener {

private String TAG = "WebBusinessActivity";
private Context mContext;
private SPUtil spUtil;

private RequestQueue requestQueue;

private WebView wv;
private GoogleApiClient client;
private String key_sort_url = "";
private String substring_url = "";

@Override
protected void initActivity() {
setContentView(R.layout.activity_web_business);
mContext = this;
spUtil = SPUtil.getInstance(mContext);
requestQueue = Volley.newRequestQueue(mContext);

initView();
initWebView();
API_Business_Center();
}

private void initWebView() {
WebSettings settings = wv.getSettings();
settings.setJavaScriptCanOpenWindowsAutomatically(true);//JS互调
settings.setJavaScriptEnabled(true);
settings.setDefaultTextEncodingName("utf-8");
settings.setBuiltInZoomControls(true);

4000
settings.setSupportZoom(true);
settings.setUseWideViewPort(true);
settings.setLoadWithOverviewMode(true);
settings.setDomStorageEnabled(true); // 开启 DOM storage API 功能
settings.setDatabaseEnabled(true);
wv.setWebViewClient(webViewClient);
}

private void API_Business_Center() {
// 请求网络
}

// 请求到数据后的处理
VolleyRequest volleyRequest = new VolleyRequest() {
@Override
protected void onMyResponse(String response) {
_Return Re = new _Return(response);
if (Re.isSuccess(mContext)) {
_WebViewMortgage webViewMortgage = new _WebViewMortgage(Re.getData());
initUrl(wv, webViewMortgage.getUrl(), webViewMortgage.getApi());
}
}
};

private void initUrl(WebView webView, String countUrl, String countApi) {
TreeMap<String, String> params = geturl(countApi);
//        UtilsTools.Log_e(TAG, "要传的map里的数据" + params.toString());
Set<String> keySet = params.keySet();
Iterator<String> iter = keySet.iterator();
while (iter.hasNext()) {
String key = iter.next();
key_sort_url = key_sort_url + key + "=" + params.get(key) + "&";
//            UtilsTools.Log_e(TAG, "遍历map拿到所有KEY+vaule拼成字符串" + key_sort_url);
substring_url = key_sort_url.substring(0, key_sort_url.length() - 1);
//            UtilsTools.Log_e(TAG, "截取字符串:" + substring_url);
}
webView.postUrl(countUrl, EncodingUtils.getBytes(substring_url, "BASE64"));
}

private TreeMap<String, String> geturl(String countApi) {
TreeMap<String, String> map = new TreeMap();
map.put("xxx", "xxxxxxxxx");
return map;
}

private void initView() {
TextView tv_title_bar_title = (TextView) findViewById(R.id.tv_title_bar_title);
tv_title_bar_title.setVisibility(View.VISIBLE);
tv_title_bar_title.setText("标题");

ImageView iv_title_bar_left = (ImageView) findViewById(R.id.iv_title_bar_left);
iv_title_bar_left.setVisibility(View.VISIBLE);
iv_title_bar_left.setImageResource(R.mipmap.ic_back);
iv_title_bar_left.setOnClickListener(this);

wv = (WebView) findViewById(R.id.wv_main_mortgage);
}

WebViewClient webViewClient = new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String request) {
view.loadUrl(request);
return true;
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}

/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
public Action getIndexApiAction() {
Thing object = new Thing.Builder()
.setName("WebViewMortgage Page") // TODO: Define a title for the content shown.
// TODO: Make sure this auto-generated URL is correct.
.setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))
.build();
return new Action.Builder(Action.TYPE_VIEW)
.setObject(object)
.setActionStatus(Action.STATUS_TYPE_COMPLETED)
.build();
}

@Override
public void onStart() {
super.onStart();

client.connect();
AppIndex.AppIndexApi.start(client, getIndexApiAction());
}

@Override
public void onStop() {
super.onStop();

AppIndex.AppIndexApi.end(client, getIndexApiAction());
client.disconnect();
}

@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.iv_title_bar_left:
finish();
break;
}
}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.yiban.caesar.Activity.Main.WebBusinessActivity">

<include layout="@layout/layout_title_bar"/>

<WebView
android:id="@+id/wv_main_mortgage"
android:layout_width="match_parent"
android:layout_height="match_parent"></WebView>
</LinearLayout>