1

src/utils/http.js

@@ -1,6 +1,27 @@
 import axios from 'axios'
 import { formatDate } from './tools'
 
+/** 递归删除对象中值为空字符串的键（不修改数组内的空字符串元素） */
+function stripEmptyStringKeys(value) {
+  if (value === null || value === undefined) {
+    return value
+  }
+  if (Array.isArray(value)) {
+    return value.map((item) => stripEmptyStringKeys(item))
+  }
+  if (typeof value === 'object' && Object.prototype.toString.call(value) === '[object Object]') {
+    const next = {}
+    for (const k of Object.keys(value)) {
+      const v = value[k]
+      if (v === '') {
+        continue
+      }
+      next[k] = stripEmptyStringKeys(v)
+    }
+    return next
+  }
+  return value
+}
 
 class Http {
   constructor() {
@@ -131,13 +152,18 @@ class Http {
     }
 
     param = JSON.parse(JSON.stringify(param))
-    return param
+    return stripEmptyStringKeys(param)
   }
 
   formatFormDataParam(param) {
+    param = param || {}
     let formData = new FormData()
-    Object.keys(param).forEach(key => {
+    Object.keys(param).forEach((key) => {
-      formData.append(key, param[key])
+      const v = param[key]
+      if (v === '') {
+        return
+      }
+      formData.append(key, v)
     })
     return formData
   }