go
type_error
ai_generated
true
错误:json:无法将对象解组为string类型的Go值
error: json: cannot unmarshal object into Go value of type string
ID: go/encoding-json-unmarshal-into-interface-with-concrete-type
80%修复率
83%置信度
0证据数
2025-11-12首次发现
版本兼容性
| 版本 | 状态 | 引入 | 弃用 | 备注 |
|---|---|---|---|---|
| 1.20 | active | — | — | — |
| 1.21 | active | — | — | — |
根因分析
尝试将JSON对象解组到Go字符串变量,这需要结构体或映射。
English
Attempting to unmarshal a JSON object into a Go string variable, which requires a struct or map.
解决方案
-
90% 成功率 Unmarshal into a map or struct first
var result map[string]interface{} if err := json.Unmarshal(data, &result); err != nil { return err } strVal, ok := result["key"].(string)
无效尝试
常见但无效的做法:
-
Using type assertion after unmarshal into interface
70% 失败
Still fails if target type is string; use proper struct.