导出功能，增加由后台配置文件名，前端可以指定或后台返回文件名

Signed-off-by: 云飞扬 <15678871232@qq.com>

ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java

@@ -2,10 +2,12 @@ package com.ruoyi.common.core.utils.poi;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.ParameterizedType;
 import java.math.BigDecimal;
+import java.net.URLEncoder;
 import java.text.DecimalFormat;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -455,6 +457,11 @@ public class ExcelUtil<T>
     public void exportExcel(HttpServletResponse response, List<T> list, String sheetName, String title)
     {
         response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
+        try {
+            response.addHeader("Content-Disposition", "attachment;FileName=" + URLEncoder.encode(title,"utf-8"));
+        } catch (UnsupportedEncodingException e) {
+            throw new RuntimeException(e);
+        }
         response.setCharacterEncoding("utf-8");
         this.init(list, sheetName, title, Type.EXPORT);
         exportExcel(response);

ruoyi-modules/ruoyi-gen/src/main/resources/vm/java/controller.java.vm

@@ -63,12 +63,12 @@ public class ${ClassName}Controller extends BaseController
      */
     @RequiresPermissions("${permissionPrefix}:export")
     @Log(title = "${functionName}", businessType = BusinessType.EXPORT)
-    @PostMapping("/export")
+    @PostMapping(value = "/export", produces = "application/octet-stream")
     public void export(HttpServletResponse response, ${ClassName} ${className})
     {
         List<${ClassName}> list = ${className}Service.select${ClassName}List(${className});
         ExcelUtil<${ClassName}> util = new ExcelUtil<${ClassName}>(${ClassName}.class);
-        util.exportExcel(response, list, "${functionName}数据");
+        util.exportExcel(response, list, "${functionName}数据", "${functionName}数据");
     }
 
     /**

ruoyi-modules/ruoyi-gen/src/main/resources/vm/vue/index.vue.vm

@@ -591,7 +591,7 @@ export default {
     handleExport() {
       this.download('${moduleName}/${businessName}/export', {
         ...this.queryParams
-      }, `${businessName}_#[[${new Date().getTime()}]]#.xlsx`)
+      })
     }
   }
 };

ruoyi-modules/ruoyi-gen/src/main/resources/vm/vue/v3/index.vue.vm

@@ -589,7 +589,7 @@ function handle${subClassName}SelectionChange(selection) {
 function handleExport() {
   proxy.download('${moduleName}/${businessName}/export', {
     ...queryParams.value
-  }, `${businessName}_#[[${new Date().getTime()}]]#.xlsx`)
+  })
 }
 
 getList();

ruoyi-ui/src/utils/request.js

@@ -73,6 +73,12 @@ service.interceptors.response.use(res => {
     const msg = errorCode[code] || res.data.msg || errorCode['default']
     // 二进制数据则直接返回
     if(res.request.responseType ===  'blob' || res.request.responseType ===  'arraybuffer'){
+      // 响应返回的内联显示的标题
+      let disposition = res.headers['content-disposition'];
+      // 根据标志，不区分大小写，获取文件名称
+      let filename = disposition.split(/filename=/i).pop();
+      // 文件名称解码
+      res.data.filename = decodeURI(filename);
       return res.data
     }
     if (code === 401) {
@@ -141,6 +147,8 @@ export function download(url, params, filename, config) {
     const isLogin = await blobValidate(data);
     if (isLogin) {
       const blob = new Blob([data])
+      // 如果方法参数的文件名称为空，则使用响应请求返回的文件名称
+      filename = filename || data.filename
       saveAs(blob, filename)
     } else {
       const resText = await data.text();