jsonrpc 服务器接受请求的小写方法名称（用于大写注册服务）

看来您可以将某些东西偷偷放入自定义编解码器中，以将小写方法定向到正确的大写方法。编写 gorilla/rpc/json 实现的 CodecRequest，您可以继续使用所有 gorilla 机器来处理请求。下面的工作示例。看起来很长，但都是评论。package mainimport (    "fmt"    "log"    "net/http"    "strings"    "unicode"    "unicode/utf8"    "github.com/gorilla/mux"    "github.com/gorilla/rpc"    "github.com/gorilla/rpc/json")type Args struct {    A, B int}type Arith inttype Result intfunc (t *Arith) Multiply(r *http.Request, args *Args, result *Result) error {    log.Printf("Multiplying %d with %d\n", args.A, args.B)    *result = Result(args.A * args.B)    return nil}// UpCodec creates a CodecRequest to process each request.type UpCodec struct {}// NewUpCodec returns a new UpCodec.func NewUpCodec() *UpCodec {    return &UpCodec{}}// NewRequest returns a new CodecRequest of type UpCodecRequest.func (c *UpCodec) NewRequest(r *http.Request) rpc.CodecRequest {    outerCR := &UpCodecRequest{}   // Our custom CR    jsonC := json.NewCodec()       // json Codec to create json CR    innerCR := jsonC.NewRequest(r) // create the json CR, sort of.    // NOTE - innerCR is of the interface type rpc.CodecRequest.    // Because innerCR is of the rpc.CR interface type, we need a    // type assertion in order to assign it to our struct field's type.    // We defined the source of the interface implementation here, so    // we can be confident that innerCR will be of the correct underlying type    outerCR.CodecRequest = innerCR.(*json.CodecRequest)    return outerCR}// UpCodecRequest decodes and encodes a single request. UpCodecRequest// implements gorilla/rpc.CodecRequest interface primarily by embedding// the CodecRequest from gorilla/rpc/json. By selectively adding// CodecRequest methods to UpCodecRequest, we can modify that behaviour// while maintaining all the other remaining CodecRequest methods from// gorilla's rpc/json implementationtype UpCodecRequest struct {    *json.CodecRequest}// Method returns the decoded method as a string of the form "Service.Method"// after checking for, and correcting a lowercase method name// By being of lower depth in the struct , Method will replace the implementation// of Method() on the embedded CodecRequest. Because the request data is part// of the embedded json.CodecRequest, and unexported, we have to get the// requested method name via the embedded CR's own method Method().// Essentially, this just intercepts the return value from the embedded// gorilla/rpc/json.CodecRequest.Method(), checks/modifies it, and passes it// on to the calling rpc server.func (c *UpCodecRequest) Method() (string, error) {    m, err := c.CodecRequest.Method()    if len(m) > 1 && err == nil {        parts := strings.Split(m, ".")        service, method := parts[0], parts[1]        r, n := utf8.DecodeRuneInString(method) // get the first rune, and it's length        if unicode.IsLower(r) {            upMethod := service + "." + string(unicode.ToUpper(r)) + method[n:]            log.Printf("lowercase method %s requested: treated as %s\n", m, upMethod)            return upMethod, err        }    }    return m, err}func main() {    s := rpc.NewServer()    // Register our own Codec    s.RegisterCodec(NewUpCodec(), "application/json")    s.RegisterCodec(NewUpCodec(), "application/json;charset=UTF-8")    arith := new(Arith)    s.RegisterService(arith, "")    r := mux.NewRouter()    r.Handle("/rpc", s)    fmt.Println(http.ListenAndServe(":1234", r))}通过以下方式调用方法：curl -X POST -H "Content-Type: application/json" -d '{"id": 1, "method": "Arith.multiply", "params": [{"A": 10, "B": 30}]}' 127.0.0.1:1234/rpc

jsonrpc 服务器接受请求的小写方法名称（用于大写注册服务）

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