Redigo:尝试连接到池时内存地址无效或零指针取消引用

Redis正在连接。。。。。！死机：运行时错误：内存地址无效或
零指针解引用[信号0xb代码=0x1地址=0x28 pc=0x40154b]
goroutine1[正在运行]：runtime.panic（0x52c6e0，0x6b6348）
/usr/lib/go/src/pkg/runtime/panic.c:266+0xb6
main.func·001（0xc21005102c，0x0，0x4bcd4c，0x1）
/home/vinay10949/redischeck/redischeck.go:21+0x10b
github.com/garyburd/redigo/redis.（*Pool）.get（0xc210051000，0x0，
0xc2100378f0、0x42dbdf、0x7fbe9c177070） /usr/lib/go/src/pkg/github.com/garyburd/redigo/redis/pool.go:250
+0x3a2 github.com/garyburd/redigo/redis（*Pool）.Get（0xc210051000，0x1，0x1）>/usr/lib/go/src/pkg/github.com/garyburd/redigo/redis/Pool.go:150
+0x27 main.main（）/home/

年份10949/redischeck/redischeck.go:29+0x13e

---

您在使用返回值后检查错误：

con, err := redis.Dial("tcp", *redisAddress)
con.Do("SELECT", 1) // Here you are using con which most likely is nil
if err != nil {
    return nil, err
}

将代码重新排列为：

con, err := redis.Dial("tcp", *redisAddress)
if err != nil {
    return nil, err
}
con.Do("SELECT", 1) // con should be used after checking for errors

---

您在使用返回值后检查错误：

con, err := redis.Dial("tcp", *redisAddress)
con.Do("SELECT", 1) // Here you are using con which most likely is nil
if err != nil {
    return nil, err
}

将代码重新排列为：

con, err := redis.Dial("tcp", *redisAddress)
if err != nil {
    return nil, err
}
con.Do("SELECT", 1) // con should be used after checking for errors