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chenhao
hel-developer-guide
Commits
26fd6aa9
Commit
26fd6aa9
authored
7 years ago
by
yang
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添加Excel导出
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## Excel文件批量导出
本系统支持Excel文件导出排队处理,支持超大数据量,能实时查询文件生成情况,支持取消导出。
#### 使用方法
1.
在代码中注入Excel导出Service
```
java
@AutoWired
private
ExcelExportServiceImpl
excelService
;
```
2.
在自己的controller中调用方法
```
java
excelService
.
saveExportInfo
(
sqlId
,
iRequest
,
config
,
rowMaxNumber
);
```
| 参数名 | 类型 | 描述 |
| :--: | :--: | :--: |
| sqlId | String | mybatis对应的数据库查询语句的ID |
| iRequest | IRequest | 带有上下文信息的reuqest对象 |
| config | ExportConfig | 包含Excel各列信息的对象,由前台传递json对象转换而来 |
| rowMaxNumber | int | 生成Excel的最大行数,可使用重载方法,不包含次参数默认为1,000,000 |
3.
运行Excel导出程序(获取该程序,请联系部门相关负责人)
```
shell
java
-jar
hel-batch-parent.jar &
```
4.
Excel导出情况查询
用户若是为管理员身份,则查询全部人的导出情况,否则只显示当前用户的导出数据
```
java
excelService
.
queryExportInfo
(
status
,
iRequest
);
```
| 参数名 | 类型 | 描述 |
| :--: | :--: | :--: |
| status | String | 指定Excel导出的状态,该参数可为空查询全部状态数据
<br><ll><li>
new->等待
</li><li>
generating->文件导出中
</li><li>
finished->导出完成
</li><li>
failed-> 导出失败
</li></ll>
|
| iRequest | IRequest | 带有上下文信息的reuqest对象 |
5.
下载已完成的Excel文件
```
java
excel
.
downloadExcel
(
filePath
,
fileName
,
request
,
response
);
```
| 参数名 | 类型 | 描述 |
| :--: | :--: | :--: |
| filePath | String | 需要下载的文件的路径 |
| fileName | String | 想要保存的文件的名称 |
| request | HttpServletRequest | 用户的请求对象 |
| response | HttpServletResponse | 用户的响应对象 |
**下载前,需要检查config.properties文件中的export.offerUrl配置项是否配置正确,且为hel-batch-parent.jar提供的文件下载url**
\ No newline at end of file
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