wcs_client_s7_baoying/src/view/component/runningInfo/DownloadLog.vue

<template>
  <div>
      <el-form :model="downLoadLog" :label-width="120" style="width: 30vh">
        <div style="font-size: 0.8rem; margin-bottom: 1rem; color: coral">
          下载路径在您的浏览器里设置哦
        </div>
        <el-form-item label="日志类型：">
          <el-select v-model="downLoadLog.logType" @change="changeLogType">
            <el-option label="系统日志" value="系统日志" />
            <el-option label="事件日志" value="事件日志" />
            <el-option label="接口请求日志" value="接口请求日志" />
            <el-option label="接口接收日志" value="接口接收日志" />
            <el-option label="异常日志" value="异常日志" />
            <el-option label="数据库日志" value="数据库日志" />
          </el-select>
        </el-form-item>
        <el-form-item label="日志时间：">
          <el-badge :value="fileName.length">
            <el-select v-model="downLoadLog.logFileName" style="width: calc(30vh - 120px)">
              <el-option v-for="item in fileName" :label="item" :value="item" />
            </el-select>
          </el-badge>
        </el-form-item>
      </el-form>
      <span class="dialog-footer">
        <el-button @click="preview">预览</el-button>
        <el-button type="primary" @click="startDownLoad">下载</el-button>
      </span>
  </div>
</template>

<script>
// import  《组件名称》  from '《组件路径》 ';
import sysApi from "@/axios/system";
import {ElMessage} from "element-plus";

export default {
  // import 引入的组件需要注入到对象中才能使用
  components: {},
  props: ['modelValue'],
  emits: ['update:modelValue'],
  data() {
    // 这里存放数据
    return {
      downLoadLog: {
        // log类型
        logType: '',
        // log文件名
        logFileName: ''
      },
      // 文件列表
      fileName: []
    }
  },
  // 计算属性 类似于 data 概念
  computed: {

  },
  // 监控 data 中的数据变化
  watch: {},
  // 方法集合
  methods: {
    // 下载文件
    startDownLoad() {
      if(this.downLoadLog.logFileName === '' || this.downLoadLog.logType === '')
      {
        ElMessage({
          message: '需要先选择类型和时间',
          type: 'warning',
        })
        return
      }
      sysApi.checkDownloadFile(this.downLoadLog).then((response) => {
        const responseData = response.data
        if(responseData.success === false) {
          ElMessage({
            message: '文件不存在',
            type: 'warning',
          })
          return
        }
        sysApi.downloadFile(this.downLoadLog).then((response) => {
          const responseData = response.data
          const link = document.createElement('a');
          link.href = window.URL.createObjectURL(new Blob([responseData]));
          link.setAttribute('download', this.downLoadLog.logType + this.downLoadLog.logFileName);
          document.body.appendChild(link);
          link.click();
          document.body.removeChild(link);
          ElMessage({
            message: '您的下载将在 30秒内开始，请稍后',
            type: 'success',
          })
        }).catch((ex) => {
          // 通讯报错
          ElMessage({
            message: '下载出现异常：' + ex,
            type: 'error',
          })
        })
      }).catch((ex) => {
        // 通讯报错
        ElMessage({
          message: '下载文件验证出现异常：' + ex,
          type: 'error',
        })
      })
    },
    changeLogType() {
      this.downLoadLog.logFileName = ''
      sysApi.getLogFileName(this.downLoadLog.logType).then((response) => {
        const responseData = response.data
        if(responseData.code !== 0 || responseData["returnData"] === undefined || responseData["returnData"] === null) {
          ElMessage({
            message: '没有文件',
            type: 'warning',
          })
          this.fileName = []
          return
        }
        this.fileName = responseData["returnData"]
      }).catch((ex) => {
        // 通讯报错
        ElMessage({
          message: '请求出现异常：' + ex,
          type: 'error',
        })
        this.fileName = []
      })
    },
    // 预览
    preview() {
      if(this.downLoadLog.logFileName === '' || this.downLoadLog.logType === '')
      {
        ElMessage({
          message: '需要先选择类型和时间',
          type: 'warning',
        })
        return
      }
      this.$emit('update:modelValue', '')
      sysApi.checkDownloadFile(this.downLoadLog).then((response) => {
        const responseData = response.data
        if(responseData.success === false) {
          ElMessage({
            message: '文件不存在',
            type: 'warning',
          })
          return
        }
        sysApi.downloadFile(this.downLoadLog).then((response) => {
          const responseData = response.data
          responseData.text().then(data=>{
            this.$emit('update:modelValue', data)
          }).catch(err=>{
            ElMessage({
              message: '预览出现异常：' + err,
              type: 'error',
            })
          })
        }).catch((ex) => {
          // 通讯报错
          ElMessage({
            message: '预览出现异常：' + ex,
            type: 'error',
          })
        })
      }).catch((ex) => {
        // 通讯报错
        ElMessage({
          message: '预览文件验证出现异常：' + ex,
          type: 'error',
        })
      })
    }
  },
  // 生命周期 - 挂载完成（可以访问 DOM 元素）
  mounted() {
  }
}
</script>

<style scoped>

</style>