要怎么進(jìn)行轉(zhuǎn)化呢?

//獲取計(jì)劃
func GetPlan(c *gin.Context){
    //expect := c.PostForm("expect")
    prevexpect,_ := strconv.Atoi(PrevExpect())
    sql := "SELECT * from plan pl  " +
        "left JOIN program pr on pl.program_id = pr.id " +
        "left JOIN program_info pi on pi.program_id = pr.id and pi.code = pr.code " +
        "where pr.status = 1 and pi.status = 1 and pl.expect = ?"
    res,err := models.Engine.Query(sql,prevexpect+1)

    r := make(gin.H)
    if err == nil {
        m := make([]map[string]string,len(res))
        for k,v := range res {
            m[k] = make(map[string]string)
            for kk,vv := range v{
                m[k][kk] = string(vv)
            }
        }
        r["Code"] = 0
        r["Message"] = "獲取成功"
        r["Data"] = m
        c.XML(200,r)
        //c.JSON(200,r)
    } else {
        r["Code"] = 1
        r["Message"] = "更新失敗"
        r["Data"] = err
        c.XML(200,gin.H{
            "data":"",
        })
    }
}

報(bào)錯(cuò)如下

xml: unsupported type: map[string]string
/usr/local/go/src/runtime/panic.go:491 (0x102b982)
        gopanic: reflectcall(nil, unsafe.Pointer(d.fn), deferArgs(d), uint32(d.siz), uint32(d.siz))
/Users/dev/go/src/github.com/gin-gonic/gin/context.go:646 (0x14f35df)
        (*Context).Render: panic(err)
/Users/dev/go/src/github.com/gin-gonic/gin/context.go:682 (0x14f38cb)
        (*Context).XML: c.Render(code, render.XML{Data: obj})
/Users/dev/go/src/autoBetServer/controller/plan.go:273 (0x166170b)
        GetPlan: c.XML(200,r)
/Users/dev/go/src/github.com/gin-gonic/gin/context.go:107 (0x14f0a82)
        (*Context).Next: c.handlers[c.index](c)
/Users/dev/go/src/github.com/gin-contrib/sessions/sessions.go:65 (0x161759f)
        Sessions.func1: c.Next()
/Users/dev/go/src/github.com/gin-gonic/gin/context.go:107 (0x14f0a82)
        (*Context).Next: c.handlers[c.index](c)
/Users/dev/go/src/github.com/gin-gonic/gin/recovery.go:46 (0x1502d29)
        RecoveryWithWriter.func1: c.Next()
/Users/dev/go/src/github.com/gin-gonic/gin/context.go:107 (0x14f0a82)
        (*Context).Next: c.handlers[c.index](c)
/Users/dev/go/src/github.com/gin-gonic/gin/logger.go:83 (0x150205b)
        LoggerWithWriter.func1: c.Next()
/Users/dev/go/src/github.com/gin-gonic/gin/context.go:107 (0x14f0a82)
        (*Context).Next: c.handlers[c.index](c)
/Users/dev/go/src/github.com/gin-gonic/gin/gin.go:359 (0x14f9b95)
        (*Engine).handleHTTPRequest: c.Next()
/Users/dev/go/src/github.com/gin-gonic/gin/gin.go:326 (0x14f932a)
        (*Engine).ServeHTTP: engine.handleHTTPRequest(c)
/usr/local/go/src/net/http/server.go:2619 (0x126f2c3)
        serverHandler.ServeHTTP: handler.ServeHTTP(rw, req)
/usr/local/go/src/net/http/server.go:1801 (0x126b40c)
        (*conn).serve: serverHandler{c.server}.ServeHTTP(w, w.req)
/usr/local/go/src/runtime/asm_amd64.s:2337 (0x10593c0)
        goexit: BYTE    $0x90   // NOP