1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
package main
import (
"context"
"fmt"
"log"
"net/http"
"net/url"
"time"
"github.com/gin-gonic/gin"
"github.com/redis/go-redis/v9"
)
var rdb *redis.Client
func initRedis() {
rdb = redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "123456",
DB: 0,
})
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
if _, err := rdb.Ping(ctx).Result(); err != nil {
log.Fatalf("无法连接Redis: %v", err)
}
}
func getFieldValue(key, field string) (string, error) {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
value, err := rdb.HGet(ctx, key, field).Result()
if err == redis.Nil {
return "", fmt.Errorf("字段不存在")
}
if err != nil {
return "", fmt.Errorf("查询失败: %w", err)
}
return value, nil
}
func main() {
initRedis()
r := gin.Default()
// 新版路由(路径参数)
r.GET("/api/query/:key/:field", func(c *gin.Context) {
// 获取并解码路径参数
rawKey := c.Param("key")
rawField := c.Param("field")
// URL解码参数
key, err := url.PathUnescape(rawKey)
if err != nil {
c.JSON(http.StatusBadRequest, gin.H{
"error": "key参数解码失败",
})
return
}
field, err := url.PathUnescape(rawField)
if err != nil {
c.JSON(http.StatusBadRequest, gin.H{
"error": "field参数解码失败",
})
return
}
// 打印解码后的参数(调试用)
log.Printf("解码参数: key=%q, field=%q", key, field)
// 参数有效性检查
if key == "" || field == "" {
c.JSON(http.StatusBadRequest, gin.H{
"error": "key和field不能为空",
})
return
}
value, err := getFieldValue(key, field)
if err != nil {
c.JSON(http.StatusNotFound, gin.H{
"error": err.Error(),
})
return
}
c.JSON(http.StatusOK, gin.H{
"key": key,
"field": field,
"value": value,
})
})
log.Println("服务启动在 :8080")
if err := r.Run(":8080"); err != nil {
log.Fatalf("服务启动失败: %v", err)
}
}
http://localhost:8080/api/query/new_que/休克早期血压的变化是(%20%20%20)。
|