added environment variables for spider page

frontend/src/components/Environment/EnvironmentList.vue

@@ -0,0 +1,75 @@
+<template>
+  <div class="environment-list">
+    <el-row>
+      <div class="button-group">
+        <el-button type="primary" @click="addEnv" icon="el-icon-plus">{{$t('Add Environment Variables')}}</el-button>
+        <el-button type="success" @click="save">{{$t('Save')}}</el-button>
+      </div>
+    </el-row>
+    <el-row>
+      <el-table :data="spiderForm.envs">
+        <el-table-column :label="$t('Variable')">
+          <template slot-scope="scope">
+            <el-input v-model="scope.row.name" :placeholder="$t('Variable')"></el-input>
+          </template>
+        </el-table-column>
+        <el-table-column :label="$t('Value')">
+          <template slot-scope="scope">
+            <el-input v-model="scope.row.value" :placeholder="$t('Value')"></el-input>
+          </template>
+        </el-table-column>
+        <el-table-column :label="$t('Action')">
+          <template slot-scope="scope">
+            <el-button size="mini" icon="el-icon-delete" type="danger" @click="deleteEnv(scope.$index)"></el-button>
+          </template>
+        </el-table-column>
+      </el-table>
+    </el-row>
+  </div>
+</template>
+
+<script>
+import {
+  mapState
+} from 'vuex'
+
+export default {
+  name: 'EnvironmentList',
+  computed: {
+    ...mapState('spider', [
+      'spiderForm'
+    ])
+  },
+  methods: {
+    addEnv () {
+      if (!this.spiderForm.envs) {
+        this.$set(this.spiderForm, 'envs', [])
+      }
+      this.spiderForm.envs.push({
+        name: '',
+        value: ''
+      })
+      console.log(this.spiderForm)
+    },
+    deleteEnv (index) {
+      this.spiderForm.envs.splice(index, 1)
+    },
+    save () {
+      this.$store.dispatch('spider/updateSpiderEnvs')
+        .then(() => {
+          this.$message.success(this.$t('Spider info has been saved successfully'))
+        })
+        .catch(error => {
+          this.$message.error(error)
+        })
+    }
+  }
+}
+</script>
+
+<style scoped>
+  .button-group {
+    width: 100%;
+    text-align: right;
+  }
+</style>