var data={ before:(onSuccess)=>{//加载之前 if(page){ this.formData.page=page; } //在下面加入自定义代码 if(this.formData.beginDate){ this.formData.beginDate=this.formData.beginDate.format("yyyy-MM-dd"); } if(this.formData.endDate){ this.formData.endDate=this.formData.endDate.format("yyyy-MM-dd"); } this.formData.outTitle=[]; for(var i=2;i<this.tableColumns.length;++i){ var item={ fieldName:this.tableColumns[i].key, headName:this.tableColumns[i].title } //处理图片 if(item.fieldName && item.fieldName.indexOf("render")>-1){ item.fieldName=item.fieldName.replace("render",""); } this.formData.outTitle.push(item); } this.formData.operatorCode=parent.vue.formData.staffCode; this.formData.operatorName=parent.vue.formData.staffName; console.log(this.formData); //在上面加入正定义代码 onSuccess(); }, execute:(onSuccess)=>{//加载数据 const msg = this.$Message.loading({ content: "正在导出数据...", duration: 0 }); goodsInOut.outExcel(this.formData, (result) => { msg(); onSuccess(result); }, (result)=> { msg(); this.$Message.error(result); }); }, after:(data)=>{//加载数据之后 for (let i = 0; i < rows.length; ++i) { let AttrName = this.getWxAttrName(top.vue.wxAttrList, rows[i]); if(AttrName){ rows[i].wxAttr = AttrName; } } console.log(data); this.$Message.success("导出成功"); location.href=config.downloadUrl + data.values; //在下面加入自定义代码 //console.log("mountMend.queryList:" + JSON.stringify(this.formData)) }, }

load(page){ var data={ before:(onSuccess)=>{ if(page){ this.formData.page=page; } //在下面加入自定义代码 //在上面加入正定义代码 onSuccess(); }, execute:(onSuccess)=>{//加载数据 const msg = this.$Message.loading({ content: "正在加载数据...", duration: 0 }); greeWarning.listUserProduct(this.formData, (result) => { msg(); onSuccess(result); }, (result)=> { msg(); this.$Message.error(result); }); }, after:(data)=>{//加载数据之后 console.log(data); this.tableData = data.data; this.total = data.data.length; //在下面加入自定义代码 }, } data.before(() => { data.execute((result) => { data.after(result); }); }) },

- before：在加载数据之前执行的代码。如果有传入page参数，会将该参数赋值给formData.page。你可以在这个步骤中添加自定义代码。 - execute：实际加载数据的步骤。它会显示一个加载中的提示消息，然后调用...

listUserProduct:(data,onSuccess,onFailed)=>{//加载 var url=result.baseUrl + "GreeWarning/Admin/listUserProduct"; data=ajax.transformRequestNoEncode(data); ajax.asyncGet(url,data,onSuccess,onFailed); },

函数接受三个参数：data、onSuccess和onFailed。 - data：包含需要传递给服务器的数据。 - onSuccess：加载成功时调用的回调函数，它会接收加载结果作为参数。 - onFailed：加载失败时调用的回调函数，它会接收错误...

outExcel:(data,onSuccess,onFailed)=> {//审核 var url="goodsInOut/outExcel"; data=ajax.transformNull(data); ajax.asyncPostData(url,data,onSuccess,onFailed); },

这段代码定义了一个名为outExcel的方法，接受data、onSuccess和onFailed作为参数。该方法用于导出数据，并进行审核操作。在方法中，首先定义了一个url变量，其值为"goodsInOut/outExcel"。然后，通过...

<template></template> <script> import * as dd from "dingtalk-jsapi"; // 此方式为整体加载，也可按需进行加载 import axios from 'axios' import { getAuth } from "../auth/callAuth"; export default { data() { return { //test/prod公司ID CorpId: "ding22b125a2c7cb0a8e", AppKey: "ding7jeqoi2u7wsk5pay", AppSecret: "pCanDLoanonIcpcWehx19jhaXJyOwMtnjc0KgpicH3uZLzQEuxzKKvwWrBP4qRwn", //const authUrl = "http://tfjybj.com/auth2-web/login/noPwdLogin?userDingId="; authUrl: "http://t-auth.tfjy.tech:8000/auth/dingLogin", auth_code: "" } }, mounted() { console.log("进入home页面") var local = this; //拿到AuthCode dd.ready(function () { // const vConsole = new Vconsole() // Vue.use(vConsole) dd.runtime.permission.requestAuthCode({ corpId: local.CorpId, onSuccess: function (info) { var datas = { "corpid": "ding7jeqoi2u7wsk5pay", "corpsecret": "pCanDLoanonIcpcWehx19jhaXJyOwMtnjc0KgpicH3uZLzQEuxzKKvwWrBP4qRwn", "dingCode": info.code } local.auth_code = info.code; //免登码 local.login(datas); }, onFail: function (err) { alert("err：" + err); } }); }); }, methods: { //登录 login(loginData) { return new Promise((resolve,reject)=>{ axios({ method: "post", url: "http://t-auth.tfjy.tech:8000/auth/dingLogin", data: loginData, headers: { 'Content-Type': 'application/json;charset=UTF-8' } }).then(res => { if (res.data.code == '200') { localStorage.setItem('Authorization', res.data.data.token); const userCode=res.data.data.userCode //手机号 let data={ 'username':userCode, 'password':userCode } getAuth(data).then((res)=>{ resolve(); }) this.$router.push("/main"); } else { // 没有登录成功 alert('你还没有权限登录哟！'); } }) }) },上边写的有什么问题吗？为什么报login未定义

getAuth(data).then((res) => { resolve(); }) this.$router.push("/main"); } else { alert('你还没有权限登录哟！'); } }) .catch(err => { console.error(err); reject(err); }); }); } } } </...

class FMation3DApp { request: IDBOpenDBRequest | undefined // 浏览器数据库 renderer: any // 创建渲染器对象 camera:any // 摄像机对象 scene:any // 三维场景 constructor(element:HTMLElement, options:Object) { this.init(element,options) } init(element:HTMLElement, options:Object) { this.request.onsuccess = function(event:any) { const cursor = index.openCursor() cursor.onsuccess = function(event:any) { this.scene = new THREE.Scene() // 创建scene对象 } } } setSprite(){ // 创建精灵模型 const spriteMaterial = new THREE.SpriteMaterial({ map: new THREE.TextureLoader().load(aaa) }) const sprite = new THREE.Sprite(spriteMaterial) // 设置精灵模型尺寸 sprite.scale.set(10, 10, 1) console.log('精灵模型',sprite,this.scene,this.renderer) // 添加精灵模型到场景中 this.scene.add(sprite) } }中this.scene为空

因此，当你在cursor.onsuccess回调函数中尝试创建this.scene对象时，它会保持为空。你需要在init函数中定义this.request并将其设置为一个打开数据库的请求。例如： init(element:HTMLElement, options:...

class FMation3DApp { request: IDBOpenDBRequest | undefined // 浏览器数据库 renderer: any // 创建渲染器对象 camera:any // 摄像机对象 scene:any // 三维场景 constructor(element:HTMLElement, options:Object) { this.init(element,options) } init(element:HTMLElement, options:Object) { this.request = indexedDB.open('myDatabase', 1) this.request.onsuccess = function(event:any) { const cursor = index.openCursor() cursor.onsuccess = function(event:any) { this.scene = new THREE.Scene() // 创建scene对象 } } } setSprite(){ // 创建精灵模型 const spriteMaterial = new THREE.SpriteMaterial({ map: new THREE.TextureLoader().load(aaa) }) const sprite = new THREE.Sprite(spriteMaterial) // 设置精灵模型尺寸 sprite.scale.set(10, 10, 1) console.log('精灵模型',sprite,this.scene,this.renderer) // 添加精灵模型到场景中 this.scene.add(sprite) } }中this.scene为空

在cursor.onsuccess回调函数中，this关键字指向的是cursor对象，而不是FMation3DApp对象。如果你想要在cursor.onsuccess回调函数中访问FMation3DApp对象的属性，你需要将this存储到另一个变量中，以便...

将以下代码修改成更新name中存储数据：request.onsuccess = function(event) { let db = event.target.result; // 在“myStore”存储中添加一条记录 let transaction = db.transaction(['myStore'], 'readwrite'); let store = transaction.objectStore('myStore'); let data ={ id: 0, name: JSON.stringify(editor) }; let request = store.add(data); request.onsuccess = function(event) { console.log('数据已成功添加到存储中！'); }; transaction.oncomplete = function(event) { db.close(); }; };

request.onsuccess = function(event) { let db = event.target.result; // 更新“myStore”存储中的一条记录 let transaction = db.transaction(['myStore'], 'readwrite'); let store = transaction.object...

帮我分析以下代码中为什么this.approvalRecordService .queryCreate方法取不到后端查询出的数据并讲解解决步骤 @Query(value = "select approvalRecord from ApprovalRecord approvalRecord where approvalRecord.createdBy.login = ?#{principal.username} order by id desc", countQuery = "select count(approvalRecord) from ApprovalRecord approvalRecord") Page<ApprovalRecord> findByCreatedByIsCurrentUser(Pageable pageable); @GetMapping("/approval-records/my-created") public Page<ApprovalRecord> getAllCreatedApprovalRecords( @org.springdoc.api.annotations.ParameterObject Pageable pageable) { log.debug("REST request to get all getAllCreatedApprovalRecords"); return approvalRecordRepository.findByCreatedByIsCurrentUser(pageable); } queryCreated(req?: any): Observable<EntityArrayResponseType> { const options = createRequestOption(req); return this.http .get<IApprovalRecord[]>(${this.resourceUrl}/my-created, { params: options, observe: 'response' }) .pipe(map((res: EntityArrayResponseType) => this.convertDateArrayFromServer(res))); } loadPage(page?: number, dontNavigate?: boolean): void { this.isLoading = true; const pageToLoad: number = page ?? this.page ?? 1; this.approvalRecordService .queryCreated({ page: pageToLoad - 1, size: this.recordsPerPage, // sort: this.sort() }) .subscribe({ next: (res: HttpResponse<IApprovalRecord[]>) =>{ this.isLoading = false; this.onSuccess(res.body, res.headers, pageToLoad, !dontNavigate); }, error: () => { this.isLoading = false; this.onError(); } }) }

.pipe(map((res: HttpResponse<Page<IApprovalRecord>>) => this.convertDateArrayFromServer(res))); } loadPage(page?: number, dontNavigate?: boolean): void { this.isLoading = true; const pageToLoad: ...

this.request = indexedDB.open('myDatabase', 1) this.request.onerror = function(event:any) { console.log('打开数据库出错！') } this.request.onupgradeneeded = function(event:any) { console.log('创建执行') const db = event.target.result // 创建一个名为“myStore”的对象存储 const store = db.createObjectStore('myStore', { keyPath: 'id' }) // 添加一个名为“name”的索引 store.createIndex('name', 'name', { unique: false }) } this.request.onsuccess = function(event:any) { const transaction = db.transaction(['myStore'], 'readonly') const objectStore = transaction.objectStore('myStore') const index = objectStore.index('name') const cursor = index.openCursor() cursor.onsuccess = (event:any)=> { } transaction.oncomplete = function(event:any) { db.close() } }上文中cursor.onsuccess中的函数为什么执行两次

可能是因为openCursor()方法会返回一个IDBCursor对象，该对象可以用于遍历数据存储库中的数据，并通过多次调用onsuccess事件来检索每个匹配项。因此，当有多个匹配项时，可能会触发多次onsuccess事件。如果你想要...

<a-upload-dragger v-model:fileList="fileList" name="file" :multiple="true" action="https://www.mocky.io/v2/5cc8019d300000980a055e76" @change="handleChange"> <inbox-outlined></inbox-outlined> 请拖拽上传文件（或点击上传文件） </a-upload-dragger>如何上传配置

xhr.onreadystatechange = () => { if (xhr.readyState === 4) { if (xhr.status === 200) { onSuccess(xhr.responseText, xhr); } else { onError(xhr.response, xhr); } } }; const formData = new ...

Cannot read properties of undefined (reading 'url') TypeError: Cannot read properties of undefined (reading 'url') at VueComponent.handleUploadSuccess (webpack-internal:///./node_modules/babel-loader/lib/index.js??clonedRuleSet-40.use[0]!./node_modules/@vue/vue-loader-v15/lib/index.js??vue-loader-options!./src/views/sys-admin/product/AlbumPictureListView.vue?vue&type=script&lang=js&:22:28) at VueComponent.handleSuccess (webpack-internal:///./node_modules/element-ui/lib/element-ui.common.js:3202:1559) at Object.onSuccess (webpack-internal:///./node_modules/element-ui/lib/element-ui.common.js:3198:2551) at XMLHttpRequest.onload (webpack-internal:///./node_modules/element-ui/lib/element-ui.common.js:3179:1062)

这个错误提示告诉我们，在 Vue 组件的 handleUploadSuccess 方法中，尝试读取一个未定义对象的 url 属性，导致了 TypeError 错误。具体的代码实现需要根据你的具体情况进行分析和调试，建议检查以下几个方面： ...

错误：Menubar.Status.js?t=1685088402102:42 Uncaught DOMException: Failed to execute 'createObjectStore' on 'IDBDatabase': The database is not running a version change transaction. at request.onsuccess 代码：// 打开或创建一个名为“myDatabase”的数据库并创建一个名为“myStore”的存储 let request = indexedDB.open('myDatabase', 1); request.onerror = function(event) { console.log('打开数据库出错！'); }; request.onupgradeneeded = function(event) { console.log('创建执行'); let db = event.target.result; // 创建一个名为“myStore”的对象存储 let store = db.createObjectStore('myStore', { keyPath: 'id' }); // 添加一个名为“name”的索引 store.createIndex('name', 'name', { unique: false }); }; request.onsuccess = function(event) { let db = event.target.result; if (!db.objectStoreNames.contains('myStore')) { let store = db.createObjectStore('myStore', { keyPath: 'id' }); // 创建一个名为“myStore”的对象存储 store.createIndex('name', 'name', { unique: false }); // 添加一个名为“name”的索引 } // 在“myStore”存储中添加一条记录 let transaction = db.transaction(['myStore'], 'readwrite'); let store = transaction.objectStore('myStore'); let data ={ id: 0, name: JSON.stringify(editor) }; let request = store.add(data); request.onsuccess = function(event) { console.log('数据已成功添加到存储中！'); }; transaction.oncomplete = function(event) { db.close(); }; };

根据代码和错误信息，可以看出这是一个关于 IndexedDB 的错误。IndexedDB 是浏览器提供的一种...这段代码将 onupgradeneeded 和 onsuccess 的功能合并到了 onsuccess 事件中，确保在正确的上下文中创建对象存储。

将以下代码修改成判断name中是否存在数据，不存在则添加，存在则更新数据：request.onsuccess = function(event) { let db = event.target.result; // 在“myStore”存储中添加一条记录 let transaction = db.transaction(['myStore'], 'readwrite'); let store = transaction.objectStore('myStore'); let data ={ id: 0, name: JSON.stringify(editor) }; let request = store.add(data); request.onsuccess = function(event) { console.log('数据已成功添加到存储中！'); }; transaction.oncomplete = function(event) { db.close(); }; };

if (result) { // 如果记录已存在，则更新数据 let updateRequest = store.put(data); updateRequest.onsuccess = function(event) { console.log('数据已成功更新到存储中！'); }; } else { // 如果记录不...

以下代码中request.onupgradeneeded = function(event)不执行：// 打开或创建一个名为“myDatabase”的数据库并创建一个名为“myStore”的存储 let request = indexedDB.open('myDatabase', 1); request.onerror = function(event) { console.log('打开数据库出错！'); }; request.onupgradeneeded = function(event) { console.log('创建执行'); let db = event.target.result; // 创建一个名为“myStore”的对象存储 let store = db.createObjectStore('myStore', { keyPath: 'id' }); // 添加一个名为“name”的索引 store.createIndex('name', 'name', { unique: false }); }; request.onsuccess = function(event) { let db = event.target.result; // 在“myStore”存储中添加一条记录 let transaction = db.transaction(['myStore'], 'readwrite'); let store = transaction.objectStore('myStore'); let data ={ id: 0, name: JSON.stringify(editor) }; let request = store.add(data); request.onsuccess = function(event) { console.log('数据已成功添加到存储中！'); }; transaction.oncomplete = function(event) { db.close(); }; };

请将 request.onupgradeneeded 放在 request.onsuccess 的回调函数中，像这样： let request = indexedDB.open('myDatabase', 1); request.onerror = function(event) { console.log('打开数据库出错！');...

我明明加了loadType这个变量来约束为什么this.loadAuditedPage (pageNumber, true);方法的结果还是会把 this.loadCreatedPage (pageNumber, true);结果覆盖 protected handleNavigation(): void { combineLatest([this.activatedRoute.data, this.activatedRoute.queryParamMap]).subscribe(([data, params]) => { const page = params.get('page');//获取当前页面的页码 const pageNumber = +(page ?? 1);//将页码转换为数字类型，并赋值给 pageNumber 变量。如果页码为空，则默认为 1 if (pageNumber !== this.page ) { this.loadCreatedPage (pageNumber, true); this.loadAuditedPage (pageNumber, true); } }); } protected onSuccess(data: IApprovalRecord[] | null, headers: HttpHeaders, page: number, navigate: boolean,loadType: number): void { this.totalRecords = Number(headers.get('X-Total-Count')); this.page = page; if (navigate) { this.router.navigate(['/approval-record/my'], { queryParams: { page: this.page, size: this.recordsPerPage, }, }); } if(loadType === 0){ this.createdApprovalRecords = data ?? []; } if(loadType === 1){ this.auditedApprovalRecords = data ?? []; } this.ngbPaginationPage = this.page; }

根据你提供的代码，我可以看到在 handleNavigation 方法中，如果 pageNumber 不等于当前页面的页码 this.page，那么就会调用 loadCreatedPage 和 loadAuditedPage 方法。但是在 onSuccess 方法中，它并...

showLoading(); init({ scene }).then(res => { if (res.success && res.data) { hideLoading(); window?.dd?.biz?.navigation?.replace({ url: res.data, onSuccess: (result: any) => { console.log('result', result); }, onFail: (err: any) => { console.log('err', err); }, }); } }) .catch(() => { hideLoading(); }); };解释下这段代码》？

1. 调用 showLoading() 函数显示页面加载的loading动画。 2. 调用 init({ scene }) 函数，传入一个对象 scene 作为参数，该函数返回一个 Promise 对象。 3. 如果 Promise 对象返回的结果 res 中包含了 ...

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