table选择多行数据

功能介绍：

1.列表分页功能；

2.一键全选，选中列表所有数据；

3.全选，选中当前页数据；

4.重置，清除选中状态；

5.列表搜索查询；

 效果：

 1.列表分页功能

<!-- 新建发送  船载终端 列表数据 -->
<el-table :data="newShipTableData" ref="newShipTableData" border highlight-current-row element-loading-text="拼命加载中"style="width: 100%;height:auto;" :header-cell-style="{textAlign: 'center',background:'#fafafa'}":cell-style="{ textAlign: 'center' }" @selection-change="newShipSelectionChange" :row-key="shipRowKey"><el-table-column type="selection" :reserve-selection="true" width="55" :selectable="newShipCheckSelectable"></el-table-column><el-table-column prop="shipName" label="船舶名称"></el-table-column><el-table-column prop="type" label="船舶类型"><template slot-scope="scope">{{scope.row.type == 1?'集装箱':'散货'}}</template></el-table-column><el-table-column prop="mmsi" label="MMSI"></el-table-column><el-table-column prop="tonnage" label="船舶吨位(t)"></el-table-column><el-table-column prop="draft" label="吃水(m)"></el-table-column><el-table-column prop="location" label="最后定位港口"></el-table-column><el-table-column prop="shipStatus" label="空船期"><template slot-scope="scope">{{scope.row.shipStatus == 0?'是':'否'}}</template></el-table-column>
</el-table>
<!-- 新建发送  船载终端 分页 -->
<el-row class='aic'><el-col :span='6' class='pt20'><!--一键全选/重置按钮--><el-checkbox label="一键全选" v-model="newShipCheckAll" @change="newShipCheck" border></el-checkbox><el-button @click='newShipResetCheck' class='ml20'>重置</el-button></el-col><el-pagination background @size-change="newShipSizeChange" @current-change="newShipCurrentChange":current-page="newCreatShipPagination.page" :page-sizes="[5, 10, 15, 20,25]":page-size="newCreatShipPagination.pageSize" layout="total, sizes, prev, pager, next, jumper":total="newCreatShipPagination.total"></el-pagination>
</el-row>  

注意事项：

 实现多选非常简单: 手动添加一个el-table-column，设type属性为selection即可；默认情况下若内容过多会折行显示，若需要单行显示可以使用show-overflow-tooltip属性，它接受一个Boolean，为true时多余的内容会在 hover 时以 tooltip 的形式显示出来。

 接口数据获取

// 新建 -- 船载终端 -- 获取表格数据getPushShipPageFun() {this.newShipRuleForm.pageNum = this.newCreatShipPagination.page;this.newShipRuleForm.pageSize = this.newCreatShipPagination.pageSize;getPushShipPage(this.newShipRuleForm).then(res => {if (res.code == 200) {// this.$refs.newShipRuleForm.resetFields();//清除console.log(res, "新建 -- 船载终端 -- 分页列表");this.newShipTableData = res.data.records;this.newCreatShipPagination.total = res.data.total;} else {this.$message.error("数据加载失败,请稍后再试");}}).catch(err => {console.log(err);});},

分页切换跳转

    // 新建 -- 船载终端 -- 选择一页几条数据newShipSizeChange(val) {this.newCreatShipPagination.pageSize = val;this.newCreatShipPagination.page = 1;this.getPushShipPageFun();},// 新建 -- 船载终端 -- 选择第几页newShipCurrentChange(val) {this.newCreatShipPagination.page = val;this.getPushShipPageFun();},

2.一键全选、全选

点击一键全选，是选中全部的数据；

具体实现：

<el-col :span='6' class='pt20'><!--一键全选/重置按钮--><el-checkbox label="一键全选" v-model="newShipCheckAll" @change="newShipCheck" border></el-checkbox><el-button @click='newShipResetCheck' class='ml20'>重置</el-button>
</el-col>

//data定义：newShipCheckAll:false,//船载终端

watch监听newShipTableData数据

watch: {// 分页全选-监听穿在终端表格数据变化 -- (点击了全选后--翻页仍然选中)newShipTableData: {handler(value) {if (this.newShipCheckAll) {this.newShipTableData.forEach(row => {if (row) {this.$refs.newShipTableData.toggleRowSelection(row, true);}});}},deep: true},
}

selection-change 当选择项发生变化时会触发该事件

// 新建 -- 船载终端 -- 全选回调newShipSelectionChange(val) {//    val表示当前选择行的 item 对象信息,全选为选中的所有 item 的数组集合console.log(val, "终端全选/反选val");this.shipSelection = val;//   选择船载终端的 集合this.shipMmsiList = this.shipSelection.map(item => {return {mmsi: item.mmsi,longitude:item.longitude,latitude:item.latitude,location:item.location }});// this.shipMmsiList = this.distinct(this.shipMmsiList);console.log(this.shipMmsiList, "选择船舶的mmsi集合");if (val.length == this.newShipLength) {this.newShipCheckAll = true;} else if (val.length == 0) {this.newShipCheckAll = false;}},

// 新建 -- 终端 --列表选择框 -- 翻页保留选中状态shipRowKey(row) {return row.shipId;console.log(row.shipId, "打印row.shipId");},

 selectable   仅对 type=selection 的列有效，类型为 Function，Function 的返回值用来决定这一行的 CheckBox 是否可以勾选；

    // 船载终端全选-全选时禁用选择框newShipCheckSelectable(row, index){return !this.newShipCheckAll;},

一键全选功能逻辑处理

toggleRowSelection   用于多选表格，切换某一行的选中状态，如果使用了第二个参数，则是设置这一行选中与否（selected 为 true 则选中）；

clearSelection  用于多选表格，清空用户的选择；

    // 一键全选newShipCheck(){//请求 终端 列表数据this.getPushShipPageFun();if (this.newShipCheckAll) {this.newShipTableData.forEach(row => {if (row) {this.$refs.newShipTableData.toggleRowSelection(row, true);}});} else {this.$refs.newShipTableData.clearSelection();}},

3.重置

    // 船载终端重置newShipResetCheck(){this.$refs.newShipTableData.clearSelection();},

4.列表搜索查询

<el-col :span="8"><div class="grid-content bg-purple-light"><el-form-item><el-button type="primary" @click="newShipSubmitForm('newShipRuleForm')">查询</el-button><el-button @click="newShipResetForm('newShipRuleForm')">重置</el-button></el-form-item></div>
</el-col>

查询 

// 新建 -- 终端 -- 查询newShipSubmitForm(newShipRuleForm) {if(this.newShipRuleForm.minTonnage&&this.newShipRuleForm.maxTonnage){if(parseFloat(this.newShipRuleForm.minTonnage)>parseFloat(this.newShipRuleForm.maxTonnage)){this.$message.warning("船舶吨位错误");return;}}this.$refs[newShipRuleForm].validate(valid => {if (valid) {this.newCreatShipPagination.page = 1;this.getPushShipPageFun();} else {console.log("error submit!!");return false;}});},

重置 

    // 新建 -- 终端 -- 重置newShipResetForm(newShipRuleForm) {this.shipMmsiList = [];this.shipSelection=[];this.$refs.newShipTableData.clearSelection();//清除选择this.newShipRuleForm.shipStatus="";this.newCreatShipPagination.page = 1;this.$refs[newShipRuleForm].resetFields();this.newShipRuleForm.pageSize = this.newCreatShipPagination.pageSize;this.getPushShipPageFun();},

⭐️⭐️⭐️  作者：船长在船上
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