[pref] #38 支持query模式下slice join string (#40)

* [pref] #38 支持query模式下slice join string

* [fix] #38 修复错误的func命名

* [pref] #38 内联处理query参数

util.go

@@ -132,6 +132,14 @@ func withParams(r *resty.Request, in any) error {
 		for name := range tagMap {
 			switch name {
 			case "query":
+				// 对query类型的字段进行特殊处理
+				if fieldType.Type.Kind() == reflect.Slice {
+					strSlice := make([]string, 0, 4)
+					for i := 0; i < fieldValue.Len(); i++ {
+						strSlice = append(strSlice, cast.ToString(fieldValue.Index(i).Interface()))
+					}
+					realVal = strings.Join(strSlice, ",")
+				}
 				contentType = "application/x-www-form-urlencoded"
 			case "json":
 				contentType = "application/json"

util_test.go

@@ -158,6 +158,38 @@ func TestFormData(t *testing.T) {
 	}
 }
 
+func TestWithParamsSlice(t *testing.T) {
+	type Test struct {
+		Ids  []int    `request:"query"`
+		IdsA []string `request:"query"`
+	}
+
+	params := Test{
+		Ids:  []int{1, 2, 3},
+		IdsA: []string{"1", "2", "3"},
+	}
+
+	r := resty.New().R()
+	err := withParams(r, params)
+
+	if err != nil {
+		t.Fatal(err)
+		return
+	}
+
+	query := make(map[string]string)
+	for k := range r.QueryParam {
+		query[k] = r.QueryParam.Get(k)
+	}
+
+	if !maps.Equal(query, map[string]string{
+		"ids":   "1,2,3",
+		"ids_a": "1,2,3",
+	}) {
+		t.Fatal("withParams query result not correct ", r.QueryParam)
+	}
+}
+
 func TestWithParamsNil(t *testing.T) {
 	r := resty.New().R()
 	err := withParams(r, []int{1, 2, 3})