英文:
Go compiler undefined method
问题
我遇到了一个编译错误："w.Write未定义（类型rest.ResponseWriter没有Write字段或方法）"
我创建了一个简单的测试文件，也遇到了同样的问题：
package server
import (
"github.com/ant0ine/go-json-rest/rest"
)
func WriteTest(w rest.ResponseWriter) {
var bs []byte
w.Write(bs)
}
编译器说未定义的方法确实在rest包中。
英文:
I am getting a compiler error "w.Write undefined (type rest.ResponseWriter has no field or method Write)"
I created a bare bones test file and have the same problem:
package server
import (
"github.com/ant0ine/go-json-rest/rest"
)
func WriteTest(w rest.ResponseWriter) {
var bs []byte
w.Write(bs)
}
The method that the compiler says is not defined is definitely in the rest package.
答案1
得分: 6
The rest.ResponseWriter类型没有Write方法，它有以下方法：
Header
WriteJson
EncodeJson
WriteHeader
然而，它在注释中提到，可以通过类型断言来使用http.ResponseWriter的方法。所以你可以尝试写下面的代码：
package server
import (
"github.com/ant0ine/go-json-rest/rest"
"net/http"
)
func WriteTest(w rest.ResponseWriter) {
var bs []byte
w.(http.ResponseWriter).Write(bs)
}
英文:
The rest.ReponseWriter type has no Write, it has the following methods:
Header
WriteJson
EncodeJson
WriteHeader
However, it says in the comments that http.ResponseWriter methods are available by type assertion. So you should be able to write the following:
package server
import (
"github.com/ant0ine/go-json-rest/rest"
"net/http"
)
func WriteTest(w rest.ResponseWriter) {
var bs []byte
w.(http.ResponseWriter).Write(bs)
}
1: https://github.com/ant0ine/go-json-rest/blob/master/rest/response.go "in the comments"
答案2
得分: 2
Write 在 responseWriter 上定义。注意小写的 r。
英文:
Write is defined on responseWriter. Note the lowercase r.
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