添加向特定用户发送信息功能

controllers/system/sendMsg.go

@@ -0,0 +1,32 @@
+package system
+
+import (
+	"encoding/json"
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"toutoukan/model/systemmodel"
+	"toutoukan/socket"
+)
+
+func SendMsg(c *gin.Context) {
+	var req systemmodel.MsgSend
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+	}
+	// 1. 将Msg结构体序列化为JSON字符串
+	msgJson, err := json.Marshal(req.Msg)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "消息序列化失败：" + err.Error()})
+		return
+	}
+
+	// 2. 将JSON字符串转换为[]byte，传给SendToUser
+	err = socket.SendToUser(req.Username, msgJson)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "发送消息失败：" + err.Error()})
+		return
+	}
+
+	// 发送成功的响应
+	c.JSON(http.StatusOK, gin.H{"code": 200, "message": "消息发送成功"})
+}