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src/views/components/elselect/treeselect.vue

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+<template>
+    <el-select v-model="mineStatus" placeholder="请选择区域" 
+    multiple
+    collapse-tags @change="selectChange" >
+      <el-option  :value="mineStatusValue" style="height: auto">
+       	<el-tree :data="treedata" show-checkbox node-key="id" ref="tree" highlight-current :props="defaultProps" @check-change="handleCheckChange"></el-tree>
+	  </el-option>
+  </el-select>
+</template>
+<script>
+export default {
+  data() {
+    return {
+      mineStatus: "",
+      mineStatusValue: [],
+      data: [
+        {
+          id: 1,
+          label: "江苏省",
+          children: [
+            {
+              id: 4,
+              label: "南京市"
+            }
+          ]
+        },
+        {
+          id: 2,
+          label: "安徽省",
+          children: [
+            {
+              id: 5,
+              label: "芜湖市"
+            },
+            {
+              id: 6,
+              label: "合肥市"
+            }
+          ]
+        },
+        {
+          id: 3,
+          label: "浙江省",
+          children: [
+            {
+              id: 7,
+              label: "杭州市"
+            },
+            {
+              id: 8,
+              label: "温州市"
+            }
+          ]
+        }
+      ],
+      defaultProps: {
+        children: "children",
+        label: "name"
+      }
+    };
+  },
+   props:{
+        treedata:{
+          type:Array,
+          default:undefined
+      },
+   },
+  methods: {
+//select框值改变时候触发的事件
+selectChange(e){
+	  var arrNew = [];
+      var dataLength = this.mineStatusValue.length;
+      var eleng = e.length;
+      for(let i = 0; i< dataLength ;i++){
+        for(let j = 0; j < eleng; j++){
+          if(e[j] === this.mineStatusValue[i].name){
+            arrNew.push(this.mineStatusValue[i])
+          }
+        }
+      }
+      this.$refs.tree.setCheckedNodes(arrNew);//设置勾选的值
+},
+ handleCheckChange() {
+      let res = this.$refs.tree.getCheckedNodes(true, true); //这里两个true，1. 是否只是叶子节点 2. 是否包含半选节点（就是使得选择的时候不包含父节点）
+      let arrLabel = [];
+      let arr = [];
+      res.forEach(item => {
+        arrLabel.push(item.name);
+        arr.push(item);
+      });
+      this.mineStatusValue = arr;
+      this.mineStatus = arrLabel;
+     // console.log('arr:'+JSON.stringify(arr))
+     // console.log('arrLabel:'+arrLabel)
+    }
+  }
+};
+</script>>
+