Android改造连接JAVA套接字

如何使用Java服务器套接字连接的改装。 我的服务器有JAVA服务器套接字。 并希望通过改型从android发送请求。

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如何通过Java套接字建立连接并发送接收到的数据这里是通过改装库连接到web服务的方法。您可以使用此示例执行您想要执行的所有操作：

1-首先需要创建通信器类（执行所有发送-接收过程）

在onCreate方法中，我们创建了communicator类的实例，并调用useGet和usePost方法将输入的用户名和密码发送到服务器

3-不要忘记添加库依赖项（将这些代码添加到build.gradle（模块：app）文件中）：

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改装不是为套接字而设计的。您确定此实现用于提供套接字编程吗？不，改装仅用于普通http连接。对于套接字连接，我强烈建议使用socket.io客户端。您可以在此处找到更多信息：因此您的答案不适用于此答案，并且它是错误的

public class Communicator {
    private static  final String TAG = "Communicator";
    private static final String SERVER_URL = "http://127.0.0.1/retrofit";

     public void loginPost(String username, String password){

        //Here a logging interceptor is created
        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
        logging.setLevel(HttpLoggingInterceptor.Level.BODY);

        //The logging interceptor will be added to the http client
        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
        httpClient.addInterceptor(logging);

        //The Retrofit builder will have the client attached, in order to get connection logs
        Retrofit retrofit = new Retrofit.Builder()
                .client(httpClient.build())
                .addConverterFactory(GsonConverterFactory.create())
                .baseUrl(SERVER_URL)
                .build(); Interface service = retrofit.create(Interface.class);

        Call<ServerResponse> call = service.post("login",username,password);

        call.enqueue(new Callback<ServerResponse>() {
            @Override
            public void onResponse(Call<ServerResponse> call, Response<ServerResponse> response) {
                BusProvider.getInstance().post(new ServerEvent(response.body()));
                Log.e(TAG,"Success");
            }

            @Override
            public void onFailure(Call<ServerResponse> call, Throwable t) {
                // handle execution failures like no internet connectivity
                BusProvider.getInstance().post(new ErrorEvent(-2,t.getMessage()));
            }
        });
    }

    public void loginGet(String username, String password){
        //Here a logging interceptor is created
        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
        logging.setLevel(HttpLoggingInterceptor.Level.BODY);

        //The logging interceptor will be added to the http client
        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
        httpClient.addInterceptor(logging);

        //The Retrofit builder will have the client attached, in order to get connection logs
        Retrofit retrofit = new Retrofit.Builder()
                .client(httpClient.build())
                .addConverterFactory(GsonConverterFactory.create())
                .baseUrl(SERVER_URL)
                .build();

        Interface service = retrofit.create(Interface.class);

        Call<ServerResponse> call = service.get("login",username,password);

        call.enqueue(new Callback<ServerResponse>() {
            @Override
            public void onResponse(Call<ServerResponse> call, Response<ServerResponse> response) {
                BusProvider.getInstance().post(new ServerEvent(response.body()));
                Log.e(TAG,"Success");
            }

            @Override
            public void onFailure(Call<ServerResponse> call, Throwable t) {
                // handle execution failures like no internet connectivity
                BusProvider.getInstance().post(new ErrorEvent(-2,t.getMessage()));
            }
        });
    }

public class MainActivity extends AppCompatActivity {

    private Communicator communicator;
    private String username, password;
    private EditText usernameET, passwordET;
    private Button loginButtonPost, loginButtonGet;
    private TextView information, extraInformation;
    private final static String TAG = "MainActivity";
    public static Bus bus;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        communicator = new Communicator();

        usernameET = (EditText)findViewById(R.id.usernameInput);
        passwordET = (EditText)findViewById(R.id.passwordInput);
        //This is used to hide the password's EditText characters. So we can avoid the different hint font.
      passwordET.setTransformationMethod(new PasswordTransformationMethod());

        loginButtonPost = (Button)findViewById(R.id.loginButtonPost);
        loginButtonPost.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                username = usernameET.getText().toString();
                password = passwordET.getText().toString();
                usePost(username, password);
            }
        });

        loginButtonGet = (Button)findViewById(R.id.loginButtonGet);
        loginButtonGet.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                username = usernameET.getText().toString();
                password = passwordET.getText().toString();
                useGet(username, password);
            }
        });

        information = (TextView)findViewById(R.id.information);
        extraInformation = (TextView)findViewById(R.id.extraInformation);
    }

    private void usePost(String username, String password){
        communicator.loginPost(username, password);
        }

    private void useGet(String username, String password){
        communicator.loginGet(username, password);
    }
}

compile 'com.squareup.okhttp3:logging-interceptor:3.4.0'
compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
compile 'com.squareup:otto:1.3.8'
compile 'com.google.code.gson:gson:2.6.2'