我的開發(fā)環(huán)境是jdk8+tomcat7，為了統(tǒng)一撬码，方便管理偶洋，我們將tomcat的默認(rèn)編碼設(shè)置為utf-8幽邓。但是在用ionic3開發(fā)手機(jī)版的時(shí)候拐揭，發(fā)現(xiàn)采用get請(qǐng)求時(shí)無亂碼撤蟆，但是一旦使用post請(qǐng)求，則傳遞的中文參數(shù)會(huì)變成亂碼堂污，找了一些資料家肯，也沒有一點(diǎn)頭緒。最后靈光一閃盟猖，試著在頭部加入了編碼讨衣，果然可以了，分享一下~
關(guān)鍵代碼參考如下：

              let params = new HttpParams()
                .set('id',that.todoItem.processInstanceId)
                .set('mySuggestion',that.mySuggestion)
                .set('nextNodeId',that.nodeId)
                .set('nextNodeName',that.nodeName)
                .set('loginFrom', 'app');
              let url=GlobalVariable.BASE_URL + 'pad.do?method=completeTaskNew';
              that.http.post(url,params, {
                withCredentials: true, //跨域操作
                headers: {
                  'content-type': 'application/x-www-form-urlencoded;charset=UTF-8',   //此處設(shè)置編碼格式
                }
              }).subscribe(res => {
                let result=res['msg'];
                if(result=='Y'){
                  let alert = this.alertCtrl.create({
                    title: '提示',
                    subTitle: '流程已成功處理!',
                    buttons: ['OK']
                  });
                  alert.present();
                  //that.navCtrl.pop();
                  that.navCtrl.pop().then(() => {
                    let msg="Y";
                    this.navParams.get('callback')(msg);
                  });

                }else{
                  let alert = this.alertCtrl.create({
                    title: '提示',
                    subTitle: '流程數(shù)據(jù)異常式镐，請(qǐng)?jiān)陔娔X端處理!',
                    buttons: ['OK']
                  });
                  alert.present();
                }

                },
                response => {
                  console.log("PUT call in error", response);
                });