英文:
Golang encoding/json marshall add null
问题
你好，我是你的中文翻译助手。以下是你要翻译的内容：
嗨，我正在使用Golang编写编码/解码JSON的代码，但返回的JSON错误值为null：
{"user_message":"无法找到符合这些参数的任何查询","application_context":"GroupsRepository.GetGroupsByQuery: ApplicationError: UserMessage - Error querying database for many Groups. ApplicationContext - Groups.GetMany: pq: column \"refill_too_soon_gpi_digits\" does not exist"} null
我使用的编组方法如下：
func EncodeErrorResponse(w http.ResponseWriter, err error, status int) {
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(err)
}
请问有人可以帮助我吗？
英文:
Hi i am working with golang on encoding/json and it return the json error with null:
{"user_message":"Can't find any Query with those parameters","application_context":"GroupsRepository.GetGroupsByQuery: ApplicationError: UserMessage - Error querying database for many Groups. ApplicationContext - Groups.GetMany: pq: column \"refill_too_soon_gpi_digits\" does not exist"} null
and the way that i marshall that it is:
func EncodeErrorResponse(w http.ResponseWriter, err error, status int) {
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(err)
}
could someone help me please.
答案1
得分: 0
从你引用的JSON输出来看，错误已经被正确编码，但是在JSON之后输出了null，这表明有一个单独的写操作。调用EncodeErrorResponse的函数在调用它之后，向ResponseWriter写入了额外的输出。
英文:
Looking at the JSON output you quoted, it looks like the error is being encoded correctly, but null is being output after the JSON, indicating a separate write operation. The function that calls EncodeErrorResponse, after it calls it, is writing additional output to the ResponseWriter.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论