Android设备搭建http服务器AndServer

忘是亡心i 2024-04-07 11:37 71阅读 0赞

## Android设备搭建http服务器AndServer ##

（1）需要在项目中引用AndServer，但是这里面有一些问题，主要是因为新版Android studio中的高版本gradle改变了添加plug和引用的方式。

在项目的根build.gradle文件（不是app那个moudle的build.gradle）最顶部添加：

buildscript {
        repositories {
            mavenCentral()
        }
    
        dependencies {
            classpath 'com.yanzhenjie.andserver:plugin:2.1.10'
        }
    }

(2)然后在当前的moudle(一般就是app)的build.gradle里面的plugins里面添加：id 'com.yanzhenjie.andserver'

然后plugins变成

plugins {
        id 'com.android.application'
        id 'com.yanzhenjie.andserver'
    }

接着在当前的这个build.gradle里面dependencies的添加：

implementation 'com.yanzhenjie.andserver:api:2.1.10'
        annotationProcessor 'com.yanzhenjie.andserver:processor:2.1.10'

（3）开始写上层Java代码：

package zhangphil.httpserver;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    import android.os.Bundle;
    
    import com.yanzhenjie.andserver.AndServer;
    import com.yanzhenjie.andserver.Server;
    
    import java.util.concurrent.TimeUnit;
    
    public class MainActivity extends AppCompatActivity {
        private Server mServer;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
    
            mServer = AndServer.webServer(this)
                    .port(9999)
                    .timeout(10, TimeUnit.SECONDS).listener(new Server.ServerListener() {
                        @Override
                        public void onStarted() {
                            System.out.println("服务器绑定地址:"+NetUtils.getLocalIPAddress().getHostAddress());
                        }
    
                        @Override
                        public void onStopped() {
    
                        }
    
                        @Override
                        public void onException(Exception e) {
    
                        }
                    })
                    .build();
    
            mServer.startup();
        }
    
        @Override
        protected void onDestroy() {
            super.onDestroy();
            mServer.shutdown();
        }
    }

上面代码主要是启动在Android手机（设备）上的http服务器，服务器绑定端口9999，绑定成功后打印IP地址。

下面是spring样式的restful代码实现，核心关键，http访问接口实现：

package zhangphil.httpserver;
    
    import com.yanzhenjie.andserver.annotation.GetMapping;
    import com.yanzhenjie.andserver.annotation.PathVariable;
    import com.yanzhenjie.andserver.annotation.PostMapping;
    import com.yanzhenjie.andserver.annotation.QueryParam;
    import com.yanzhenjie.andserver.annotation.RequestBody;
    import com.yanzhenjie.andserver.annotation.RequestParam;
    import com.yanzhenjie.andserver.annotation.RestController;
    
    import org.json.JSONObject;
    
    
    @RestController
    public class ServerController {
        @GetMapping("/")
        public String ping() {
            return "SERVER OK";
        }
    
        @PostMapping("/user/login")
        public JSONObject login(@RequestBody String str) throws Exception {
            JSONObject jsonObject = new JSONObject(str);
            return jsonObject;
        }
    
        @GetMapping("/user/item")
        public JSONObject requestItem(@RequestParam("name") String name,
                                     @RequestParam("id") String id) throws Exception {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("name", name);
            jsonObject.put("id", id);
    
            return jsonObject;
        }
    
        @GetMapping("/user/{userId}")
        public JSONObject getUser(@PathVariable("userId") String userId,
                               @QueryParam("key") String key) throws Exception{
            JSONObject user = new JSONObject();
            user.put("id", userId);
            user.put("key", key);
            user.put("year", 2022);
    
            return user;
        }
    }

NetUtils.java主要是为了获取当前Android手机的IP地址：

package zhangphil.httpserver;
    
    import java.net.InetAddress;
    import java.net.NetworkInterface;
    import java.net.SocketException;
    import java.util.Enumeration;
    import java.util.regex.Pattern;
    
    public class NetUtils {
        private static final Pattern IPV4_PATTERN = Pattern.compile(
                "^(" + "([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}" +
                        "([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$");
    
        public static boolean isIPv4Address(String input) {
            return IPV4_PATTERN.matcher(input).matches();
        }
    
        public static InetAddress getLocalIPAddress() {
            Enumeration<NetworkInterface> enumeration = null;
            try {
                enumeration = NetworkInterface.getNetworkInterfaces();
            } catch (SocketException e) {
                e.printStackTrace();
            }
            if (enumeration != null) {
                while (enumeration.hasMoreElements()) {
                    NetworkInterface nif = enumeration.nextElement();
                    Enumeration<InetAddress> inetAddresses = nif.getInetAddresses();
                    if (inetAddresses != null) {
                        while (inetAddresses.hasMoreElements()) {
                            InetAddress inetAddress = inetAddresses.nextElement();
                            if (!inetAddress.isLoopbackAddress() && isIPv4Address(inetAddress.getHostAddress())) {
                                return inetAddress;
                            }
                        }
                    }
                }
            }
            return null;
        }
    }

以上代码写好后，注意在AndroidManifest.xml配置网络权限：

<uses-permission android:name="android.permission.INTERNET"/>
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
        <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

接下来，就可以通过浏览器或者postman访问Android手机上运行的服务器了。

在浏览器里面测试服务器的连通性，ping()接口：

![fd044bf93b6c4afd9a1df10966589eda.png][]

用户的登陆接口user/login，login()接口：

![6e1f0506ffa64ed1948b248ac4c01702.png][]

支持连接符号&的requestItem接口：

![fe77d6c7ae6643768af7f3cd39e34097.png][]

具备查询功能的getUser（）接口：

![45dbccfd0cda441c92b07606cc594c81.png][]

[fd044bf93b6c4afd9a1df10966589eda.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/b920aa4f1e2845bc99b7acb3b5179c11.png
[6e1f0506ffa64ed1948b248ac4c01702.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/368d1ceb932e4aac8182d81acf198d0d.png
[fe77d6c7ae6643768af7f3cd39e34097.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/33f105ce4aad43acaf4eaa43ef99203b.png
[45dbccfd0cda441c92b07606cc594c81.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/39ebb4ef6f9c4c9f8e5baaaa21c20a79.png