微信 App内调起微信支付demo发送http请求报错

小咪咪 2022-02-01 07:27 283阅读 0赞

今天在调用微信的app内调起微信支付时，运行的 时候报错如下：

05-13 19:26:16.373 28230-28230/com.hui W/System.err: android.os.NetworkOnMainThreadException
            at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1448)
            at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:102)
            at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:90)
            at java.net.InetAddress.getAllByName(InetAddress.java:787)
            at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:185)
    05-13 19:26:16.374 28230-28230/com.hui W/System.err:     at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:172)
            at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:130)
            at org.apache.http.impl.client.DefaultRequestDirector.executeOriginal(DefaultRequestDirector.java:1334)
            at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:700)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:560)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:492)
            at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:470)
    05-13 19:26:16.375 28230-28230/com.hui W/System.err:     at com.hui.Util.httpGet(Util.java:82)
            at com.pingan.patech.sancunhui.PayActivity$1.onClick(PayActivity.java:37)
            at android.view.View.performClick(View.java:6897)
            at android.widget.TextView.performClick(TextView.java:12693)
            at android.view.View$PerformClick.run(View.java:26100)
            at android.os.Handler.handleCallback(Handler.java:789)
    05-13 19:26:16.376 28230-28230/com.hui W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:98)
            at android.os.Looper.loop(Looper.java:164)
            at android.app.ActivityThread.main(ActivityThread.java:6942)
            at java.lang.reflect.Method.invoke(Native Method)
            at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

解决办法，activity的oncreate方法添加

StrictMode.ThreadPolicy policy=new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);

因为android自从4.0版本以后，就不能在主线程里访问网络了，因为一旦主线程访问网络失败，就会造成安卓程序挂掉，所以要使用多线程来进行网络访问