管灌系统巡查员智能手机App
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package com.dayu.pipirrapp.net;
 
import android.text.TextUtils;
 
import com.dayu.pipirrapp.MyApplication;
import com.dayu.pipirrapp.utils.NetUtils;
import com.tencent.bugly.crashreport.CrashReport;
 
import java.io.IOException;
import java.net.ConnectException;
import java.util.HashMap;
import java.util.Map;
 
import okhttp3.FormBody;
import okhttp3.Interceptor;
import okhttp3.MediaType;
import okhttp3.Protocol;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
 
/**
 * Copyright (C), 2023,
 * Author: zuo
 * Description:通信拦截器添加Header
 */
public class MyIntercepterApplication implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();
        try {
            if (NetUtils.isNetworkAvailable(MyApplication.myApplication)) {
                Request myRequest = createRequest(chain.request());
                Response response = null;
                try {
                    response = chain.proceed(myRequest);
                } catch (ConnectException e) {
                    e.printStackTrace();
                    return getNullResponse(request);
                }
 
                return response;
            } else {
                return getNullResponse(request);
 
            }
        } catch (Exception e) {
            e.printStackTrace();
            CrashReport.postCatchedException(e);
        }
        return getNullResponse(request);
    }
 
    protected Request createRequest(Request request) {
        try {
            Request.Builder builder = request.newBuilder();
            Map params = new HashMap();
            if ("GET".equals(request.method())) {
                builder.url(request.url().toString());
            } else {
 
                RequestBody body = request.body();
                if (body instanceof FormBody) {
                    FormBody oldFormBody = (FormBody) body;
                    if (oldFormBody != null && oldFormBody.size() > 0) {
                        //处理body
                    }
                }
                builder.addHeader("os", "app");
                if (!TextUtils.isEmpty(MyApplication.myApplication.token)) {
                    builder.addHeader("token", MyApplication.myApplication.token);
                }
 
            }
            builder.addHeader("tag", MyApplication.myApplication.myTag);
            return builder.build();
        } catch (Exception e) {
            e.printStackTrace();
            CrashReport.postCatchedException(e);
        }
        return null;
 
    }
 
    /**
     * 网络错误时的异常处理
     *
     * @param request
     * @return
     */
    public Response getNullResponse(Request request) {
        int code = 20010;
        String message = "咦,请检查网络";
        String errJson = "{\"code\":" + code + ",\"msg\":\"" + message + "\"}";
        Response.Builder builder = new Response.Builder().body(ResponseBody.create(MediaType.parse("application/json"), errJson));
        builder.request(request);
        builder.protocol(Protocol.HTTP_1_1);
        builder.code(200);
        builder.message(message);
        return builder.build();
    }
 
 
}