代码改造完成，加入多字典查询方式

src/views/monitor/log/search.vue

@@ -0,0 +1,28 @@
+<template>
+  <div class="head-container">
+    <el-input v-model="query.value" clearable placeholder="请输入搜索内容" style="width: 150px;" class="filter-item" @keyup.enter.native="toQuery"/>
+    <el-select v-model="query.type" clearable placeholder="类型" class="filter-item" style="width: 130px">
+      <el-option v-for="item in queryTypeOptions" :key="item.key" :label="item.display_name" :value="item.key"/>
+    </el-select>
+    <el-button class="filter-item" size="mini" type="success" icon="el-icon-search" @click="$parent.toQuery">搜索</el-button>
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    query: {
+      type: Object,
+      required: true
+    }
+  },
+  data() {
+    return {
+      queryTypeOptions: [
+        { key: 'username', display_name: '用户名' },
+        { key: 'description', display_name: '描述' }
+      ]
+    }
+  }
+}
+</script>