android-async-http 基本使用方法

绝地灬酷狼 2022-07-14 09:17 97阅读 0赞

我用的是android studio，在Gradle中添加依赖

compile 'cz.msebera.android:httpclient:4.3.6' compile 'com.loopj.android:android-async-http:1.4.9'

更新依赖，下载架包

在项目中放2个按钮，分别用于，get、post请求

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在MainActivity中的代码，引入架包

import com.loopj.android.http.*;
    import cz.msebera.android.httpclient.*;

AsyncHttpClient client = new AsyncHttpClient();

public void btn_get(View v) {
            final String path = "http://192.168.20.146:8080/test/LoginServlet?username="+ URLEncoder.encode("zhuyu")+"&password="+URLEncoder.encode("123456");
            client.get(path, new AsyncHttpResponseHandler() {
                @Override
                public void onSuccess(int statusCode, Header[] headers, byte[] response) {
                    // called when response HTTP status is "200 OK"
                    String content = new String(response);
                    Toast.makeText(MainActivity.this,"get：" + content,0).show();
                }
    
                @Override
                public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable e) {
                    // called when response HTTP status is "4XX" (eg. 401, 403, 404)
                    String content = new String(errorResponse);
                    Toast.makeText(MainActivity.this,"get：，出现异常",0).show();
                }
            });
        }
    
    public void btn_post(View v) {
            final String path = "http://192.168.20.146:8080/test/LoginServlet";
            RequestParams params = new RequestParams();
            params.put("username", "zhuyu");
            params.put("password", "123456");
            client.post(path, params, new AsyncHttpResponseHandler() {
                @Override
                public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
                    String content = new String(responseBody);
                    Toast.makeText(MainActivity.this,"post：" + content,0).show();
                }
    
                @Override
                public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
                    String content = new String(responseBody);
                    Toast.makeText(MainActivity.this,"post：，出现异常",0).show();
                }
            });
        } 
    
    本地测试成功

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[Center]: /images/20220714/777bea56724144bc8936fd016e7da358.png
[Center 1]: /images/20220714/16fe13f9ab5345e2bd9dcc7132aaa568.png