/** * 通用js方法封装处理 * Copyright (c) 2019 ruoyi */ // 日期格式化 export function parseTime(time, pattern) { if (arguments.length === 0 || !time) { return null } const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}' let date if (typeof time === 'object') { date = time } else { if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) { time = parseInt(time) } else if (typeof time === 'string') { time = time.replace(new RegExp(/-/gm), '/').replace('T', ' ').replace(new RegExp(/\.[\d]{3}/gm), '') } if ((typeof time === 'number') && (time.toString().length === 10)) { time = time * 1000 } date = new Date(time) } const formatObj = { y: date.getFullYear(), m: date.getMonth() + 1, d: date.getDate(), h: date.getHours(), i: date.getMinutes(), s: date.getSeconds(), a: date.getDay() } const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => { let value = formatObj[key] // Note: getDay() returns 0 on Sunday if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] } if (result.length > 0 && value < 10) { value = '0' + value } return value || 0 }) return time_str } // 表单重置 export function resetForm(refName) { if (this.$refs[refName]) { this.$refs[refName].resetFields() } } // 添加日期范围 export function addDateRange(params, dateRange, propName) { const search = params search.params = typeof (search.params) === 'object' && search.params !== null && !Array.isArray(search.params) ? search.params : {} dateRange = Array.isArray(dateRange) ? dateRange : [] if (typeof (propName) === 'undefined') { search.params['beginTime'] = dateRange[0] search.params['endTime'] = dateRange[1] } else { search.params['begin' + propName] = dateRange[0] search.params['end' + propName] = dateRange[1] } return search } // 回显数据字典 export function selectDictLabel(datas, value) { var actions = [] Object.keys(datas).some((key) => { if (datas[key].value == ('' + value)) { actions.push(datas[key].label) return true } }) return actions.join('') } // 回显数据字典(字符串数组) export function selectDictLabels(datas, value, separator) { if (value === undefined) { return '' } var actions = [] var currentSeparator = undefined === separator ? ',' : separator var temp = value.split(currentSeparator) Object.keys(value.split(currentSeparator)).some((val) => { Object.keys(datas).some((key) => { if (datas[key].value == ('' + temp[val])) { actions.push(datas[key].label + currentSeparator) } }) }) return actions.join('').substring(0, actions.join('').length - 1) } // 字符串格式化(%s ) export function sprintf(str) { var args = arguments; var flag = true; var i = 1 str = str.replace(/%s/g, function() { var arg = args[i++] if (typeof arg === 'undefined') { flag = false return '' } return arg }) return flag ? str : '' } // 转换字符串,undefined,null等转化为"" export function parseStrEmpty(str) { if (!str || str == 'undefined' || str == 'null') { return '' } return str } // 数据合并 export function mergeRecursive(source, target) { for (var p in target) { try { if (target[p].constructor == Object) { source[p] = mergeRecursive(source[p], target[p]) } else { source[p] = target[p] } } catch (e) { source[p] = target[p] } } return source } /** * 构造树型结构数据 * @param {*} data 数据源 * @param {*} id id字段 默认 'id' * @param {*} parentId 父节点字段 默认 'parentId' * @param {*} children 孩子节点字段 默认 'children' */ export function handleTree(data, id, parentId, children) { const config = { id: id || 'id', parentId: parentId || 'parentId', childrenList: children || 'children' } var childrenListMap = {} var nodeIds = {} var tree = [] for (const d of data) { const parentId = d[config.parentId] if (childrenListMap[parentId] == null) { childrenListMap[parentId] = [] } nodeIds[d[config.id]] = d childrenListMap[parentId].push(d) } for (const d of data) { const parentId = d[config.parentId] if (nodeIds[parentId] == null) { tree.push(d) } } for (const t of tree) { adaptToChildrenList(t) } function adaptToChildrenList(o) { if (childrenListMap[o[config.id]] !== null) { o[config.childrenList] = childrenListMap[o[config.id]] } if (o[config.childrenList]) { for (const c of o[config.childrenList]) { adaptToChildrenList(c) } } } return tree } /** * 参数处理 * @param {*} params 参数 */ export function tansParams(params) { let result = '' for (const propName of Object.keys(params)) { const value = params[propName] var part = encodeURIComponent(propName) + '=' if (value !== null && typeof (value) !== 'undefined') { if (typeof value === 'object') { for (const key of Object.keys(value)) { if (value[key] !== null && typeof (value[key]) !== 'undefined') { const params = propName + '[' + key + ']' var subPart = encodeURIComponent(params) + '=' result += subPart + encodeURIComponent(value[key]) + '&' } } } else { result += part + encodeURIComponent(value) + '&' } } } return result } // 验证是否为blob格式 export async function blobValidate(data) { try { const text = await data.text() JSON.parse(text) return false } catch (error) { return true } } /** * 自动列宽 * flexWidth: https://blog.csdn.net/luoyumeiluoyumei/article/details/125853152?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-1-125853152-blog-123421632.pc_relevant_recovery_v2&spm=1001.2101.3001.4242.2&utm_relevant_index=4 * @param prop 每列的prop 不能为空 * @param tableData 表格数据 * @param title 标题长内容短的,传标题 不能为空 * @param num 列中有标签等加的富余量 * @returns 列的宽度 * 注:prop,title有一个必传 */ export function flexWidth(prop, tableData, title, num = 0) { if (tableData.length === 0) { // 表格没数据不做处理 return } let flexWidth = 0// 初始化表格列宽 let columnContent = ''// 占位最宽的内容 const canvas = document.createElement('canvas') const context = canvas.getContext('2d') context.font = '14px Microsoft YaHei' // 获取占位最宽的内容 let index = 0 for (let i = 0; i < tableData.length; i++) { // 循环表格内容,获取表格内容中最长的数据 const now_temp = tableData[i][prop] + '' const max_temp = tableData[index][prop] + '' const now_temp_w = context.measureText(now_temp).width const max_temp_w = context.measureText(max_temp).width if (now_temp_w > max_temp_w) { index = i } } columnContent = tableData[index][prop] const column_w = context.measureText(columnContent).width const title_w = context.measureText(title).width if (column_w < title_w) { columnContent = title || '留四个字' } // 计算最宽内容的列宽 const width = context.measureText(columnContent) flexWidth = width.width + 20 + num return flexWidth + 'px' }