fix bugs

src/utils/request.js

@@ -70,10 +70,29 @@ function request(options = {}) {
 
 	// GET请求：将params拼接到URL
 	if (method === 'GET' && params && Object.keys(params).length > 0) {
-		const queryString = Object.keys(params)
-			.map(key => `${encodeURIComponent(key)}=${encodeURIComponent(params[key])}`)
-			.join('&')
-		fullUrl += (url.includes('?') ? '&' : '?') + queryString
+		// 过滤掉 undefined、null、空字符串的参数
+		const validParams = Object.keys(params).filter(key => {
+			const value = params[key]
+			return value !== undefined && value !== null && value !== ''
+		})
+
+		if (validParams.length > 0) {
+			const queryString = validParams
+				.map(key => {
+					const value = params[key]
+					// 确保值不是 undefined 字符串
+					if (typeof value === 'string' && value === 'undefined') {
+						return null
+					}
+					return `${encodeURIComponent(key)}=${encodeURIComponent(value)}`
+				})
+				.filter(item => item !== null)
+				.join('&')
+
+			if (queryString) {
+				fullUrl += (url.includes('?') ? '&' : '?') + queryString
+			}
+		}
 		requestData = undefined // GET请求不使用data字段
 	}