appHttpService.ts

import {LoadingController, AlertController, ToastController} from 'ionic-angular';
import {Injectable} from '@angular/core';
import {Http, Headers} from '@angular/http';
import {Observable} from "rxjs";

@Injectable()
export class AppGlobal {
    //缓存key的配置
    static cache: any = {
        slides: "_dress_slides",
        categories: "_dress_categories",
        products: "_dress_products"
    }
    //接口基地址    //测试环境
    // static domain = "http://220.248.107.115:2239";
    //正式环境
    // static domain = "http://180.153.158.250:3306";
    static domain = "http://180.168.156.212:2931";
    //static domain = "http://localhost:8080"

    //乔坤
    //static domain = "http://10.10.202.54:8080";220.248.107.115:2239

    //测试
    // static picture = "http://220.248.107.115:2239/wisdomgroup/manager/getIcon/";
    //正式
    // static picture = "http://180.153.158.250:3306/wisdomgroup/manager/getIcon/";
    static picture = "http://180.168.156.212:2931/wisdomgroup/manager/getIcon/";

    //接口地址
    static API: any = {
        getCategories: '/api/ionic3/getCategories',
        getLogin: '/app/loginpost',
        getDetails: '/api/ionic3/details'
    };
}

@Injectable()
export class AppService {
    constructor(public http: Http,
                public loadingCtrl: LoadingController,
                private alertCtrl: AlertController,
                private toastCtrl: ToastController,) {
    }

    // 对参数进行编码
    encode(params, flag) {
        var str = '';
        if (params) {
            if (flag == 'get') { //get   /a/b
                for (var key in params) {
                    if (params.hasOwnProperty(key)) {
                        var value = params[key];
                        str += value + '/';
                    }
                }
                str = '/' + str.substring(0, str.length - 1);
            }
            if (flag == 'post') { //post  a=b&c=d
                for (var key in params) {
                    if (params.hasOwnProperty(key)) {
                        var value = params[key];
                        //str += encodeURIComponent(key) + '=' + encodeURIComponent(value) + '&';
                        str += key + '=' + value + '&';
                    }
                }
                str = str.substring(0, str.length - 1);
            }
        }
        return str;
    }

    //get请求
    ObserverHttpGet(url, params): Observable<any> {
        // return this.http.get(AppGlobal.domain+url+this.encode(params,"get"))    //app
        return this.http.get(url + this.encode(params, "get"))   //本地
    }

    //get请求
    ObserverHttpGetData(url, params): Observable<any> {
        // return this.http.get(AppGlobal.domain+url, params)    //app
        return this.http.get(url, params)   //本地
    }

    //get请求
    ObserverHttpGetAdd(url, params): Observable<any> {
        // return this.http.get(AppGlobal.domain+url+ params)    //app
        return this.http.get(url+ params)   //本地
    }

    //get请求带？的
    ObserverHttpGetOption(url, params): Observable<any> {
        // return this.http.get(AppGlobal.domain+url,{params: params});    //app
        return this.http.get(url, {params: params});   //本地
    }

    //delete
    ObserverHttpDetelete(url, params): Observable<any> {
        // return this.http.get(AppGlobal.domain+url+this.encode(params,"get"))    //app
        return this.http.delete(url + this.encode(params, "get"))   //本地
    }

    ObserverHttpPostData(url, params) {
        // return this.http.post(AppGlobal.domain+url,params,{      //app
        return this.http.post(url, params, {      //本地
            headers: new Headers({
                // "Accept": "application/json",
                "Content-Type": "application/json"
                // 'Content-Type':'application/x-www-form-urlencoded,charset=UTF-8'
            })
        })
    }

    ObserverHttpPostOption(url,data) {
        // return this.http.post(AppGlobal.domain+url,null,{      //app
        return this.http.post(url, null,{
            params:data,
            headers: new Headers({
                // "Accept": "application/json",
                // "Content-Type": "application/json"
                'Content-Type': 'application/x-www-form-urlencoded,charset=UTF-8'
            })
        });

    }

    ObserverHttpPostForm(url, params) {
        console.log('form');
        // return this.http.post(AppGlobal.domain+url,null,{      //app
        return this.http.post(url, null, {      //本地
            params: params,
            headers: new Headers({
                // "Accept": "application/json",
                // "Content-Type": "application/json"
                'Content-Type': 'application/x-www-form-urlencoded,charset=UTF-8'
            })
        })
    }

    //post请求
    ObserverHttpPost(url, params) {
        // return this.http.post(AppGlobal.domain+url,null,{      //app
        return this.http.post(url, null, {      //本地
            params: this.encode(params, 'post'),
            headers: new Headers({
                // "Accept": "application/json",
                //"Content-Type": "application/json,charset=UTF-8"
                'Content-Type': 'application/x-www-form-urlencoded,charset=UTF-8'
            })
        })
    }

    //put请求
    ObserverHttpPut(url, params, data) {
        // return this.http.post(AppGlobal.domain+url +data,params,{      //app
        return this.http.put(url + data, params, {      //本地
            headers: new Headers({
                // "Accept": "application/json",
                "Content-Type": "application/json"
                // 'Content-Type':'application/x-www-form-urlencoded,charset=UTF-8'
            })
        })
    }

    private handleError(error: Response | any) {
        let msg = '';
        if (error.status == 400) {
            msg = '请求无效(code：404)';
            console.log('请检查参数类型是否匹配');
        }
        if (error.status == 404) {
            msg = '请求资源不存在(code：404)';
            console.error(msg + '，请检查路径是否正确');
        }
        if (error.status == 500) {
            msg = '服务器发生错误(code：500)';
            console.error(msg + '，请检查路径是否正确');
        }
        console.log(error);
        if (msg != '') {
            this.toast(msg);
        }
    }

    toast(message, callback?) {
        let toast = this.toastCtrl.create({
            message: message,
            duration: 2000,
            dismissOnPageChange: true,
        });
        toast.present();
        if (callback) {
            callback();
        }
    }

    //position:top, bottom and middle
    popToastView(message: string, position: string, duration: number) {
        this.toastCtrl.create({
            message: message,
            position: position,
            duration: duration,
            //showCloseButton:true,
            //closeButtonText:"关闭"
        }).present();
    }

    alert(message, callback?) {
        if (callback) {
            let alert = this.alertCtrl.create({
                title: '提示',
                message: message,
                buttons: ['取消', {
                    text: "确定",
                    handler: data => {
                        callback();
                    }
                }]
            });
            alert.present();
        } else {
            let alert = this.alertCtrl.create({
                title: '提示',
                message: message,
                buttons: ["确定"]
            });
            alert.present();
        }
    }

}