vue axios 批量删除 数组参数
方法一:前端循环请求服务器端delete(id)方法
请问如何获得element-ui表格中的勾选项index,以实现批量删除功能
转载来源:https://segmentfault.com/q/1010000012759131
方法二:传递 string类型字符串。例如: '1,2,3,4'
ids =[1,2,3,4]
url: '/investigator/submitAll/' + ids,
method: 'post'
服务器端接收到: string类型字符串 '1,2,3,4' ,然后string转int。
转换方法:
var tstr = msgsnew.join(','); //数组转字符串 console.log("tstr", tstr); var tstrtwo = msgsnew.toString(); //数组转字符串
var tarra = tstr.split(','); //字符串转数组
方法三:直接传递数组类型(网上案例均尝试失败)
转载来源:https://www.jianshu.com/p/68d81da4e1ad
参数:ids=1&ids=2&ids=3
(博客主的这个案例成功了,但不知为何,我没有尝试成功!)
2 axios向后台传递数组作为参数
转载来源:https://blog.csdn.net/u012317188/article/details/79752096
JSON.stringify(ids)
服务器端收到的是string类型的 ‘[1,2,3,4]’
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综上,我采用了 方法二,完整代码实现如下:
实现 : elementUI table 的 多选 :
http://element-cn.eleme.io/#/zh-CN/component/table
代码摘要:
<el-button style="margin:0 0 0 20px;" type="primary" @click="toggleSelection(list)">反选</el-button> <el-button style="margin:0 0 0 20px;" type="primary" @click="submitAllSelection()">批量提交</el-button> <el-table ref="multipleTable" @selection-change="handleSelectionChange"> <el-table-column type="selection" width="55"/> data() { return { multipleSelection: [] } } methods: { toggleSelection(rows) { // console.log('rows', rows) // console.log('multipleTable-start', this.$refs.multipleTable) //table对象 // this.$refs.multipleTable.toggleAllSelection(rows) //全选或全不选 if (rows) { rows.forEach(row => { this.$refs.multipleTable.toggleRowSelection(row)// 反选 }) } else { // this.$refs.multipleTable.clearSelection() //清除选中 } }, handleSelectionChange(val) { this.multipleSelection = val //当前选中行的数据 }, submitAllSelection() { if (this.multipleSelection.length > 0) { this.$confirm('此操作将提交选中项, 是否继续?', '提示', { confirmButtonText: '确定', cancelButtonText: '取消', type: 'warning' }).then(() => { const idList = [] for (const v of this.multipleSelection) { idList.push(v.DataSourceID) } this.submitAll(idList) }).catch(() => { this.$notify({ title: '提示', message: '已取消批量提交', type: 'info', duration: 2000 }) }) } else { this.$notify({ title: '提示', message: '请勾选要提交的项!', type: 'warning', duration: 2000 }) } }, submitAll(idList) { // const idList = JSON.stringify(ids) // console.log('idList', idList) submitAll(idList).then((response) => { if (response.success) { console.log('response', response.data) for (const v of this.multipleSelection) { const index = this.list.indexOf(v) this.list[index].HasSubmitted = true } this.$notify({ title: '成功', message: '批量提交成功', type: 'success', duration: 2000 }) } else { this.$notify({ title: '失败', message: '批量提交失败', type: 'danger', duration: 3000 }) } }) } } export function submitAll(idList) { return request({ url: '/investigator/submitAll/' + idList, method: 'post' }) } 根据axios 封装出request 以简化请求。
C# webapi控制器
/// <summary> /// 批量提交 /// </summary> /// <param name="ids"></param> /// <returns></returns> [HttpPost] [Route("SubmitAll/{idList}")] public ApiResult SubmitAll(string idList) { var result = new ApiResult(); result.success = false; if (!String.IsNullOrEmpty(idList) && !String.IsNullOrEmpty(idList.Trim())) { string[] strArray = idList.Split(','); if (strArray.Length > 0) { int[] ids = new int[] { }; ids = Array.ConvertAll<string, int>(strArray, s => int.Parse(s)); var num = manage.SubmitAll(ids, User.Identity.GetUserId<int>()); result.success = true; result.data = num; } } return result; }
// 数据库访问层
public int SubmitAll(int[] idList, int userId) { int num = 0; using (var pmdb = new ProjectEntities()) { using (var tran = pmdb.Database.BeginTransaction()) { try { var list = pmdb.T_Investigator.Where(d => idList.Contains(d.InvestigatorID) && d.CreateUserID == userId && d.HasSubmitted == false).ToList(); if (list.Count > 0) { foreach (var item in list) { item.HasSubmitted = true; } num = pmdb.SaveChanges(); tran.Commit(); } } catch (Exception ex) { tran.Rollback();//回滚 throw ex; } } } return num; }
(如果有人尝试直接传递数组成功了,请一定留言!)
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