How to solve the problem of garbled log output in golang
在使用 Golang 进行日志输出时,有时候会遇到日志输出乱码的情况,这种情况有多种原因,不同的原因可能需要采取不同的解决方法,下面我们就来详细介绍。
1. 编码问题
在输出日志时,如果没有指定编码方式或者指定的编码方式与实际字符集不符合,就会出现日志乱码的问题。具体表现为在日志文件中出现一些非法字符,如下所示:
[2020-08-12 17:05:20] [ERROR] [main.go:25] 测试: [2020-08-12 17:05:20] [ERROR] [main.go:25] ��测试
这种情况的解决方法有两个:
- 指定编码方式
- 使用更合适的字符
1.1 指定编码方式
在 Golang 中,我们可以使用 bufio.NewReader
+ charset.NewReaderLabel
的方式来指定编码方式,如下所示:
f, err := os.OpenFile("test.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666) if err != nil { panic("打开文件失败") } w := bufio.NewWriter(f) enc := mahonia.NewEncoder("GB18030") if enc == nil { panic("创建 GB18030 编码失败") } writer := enc.NewWriter(w) log.SetOutput(writer)
以上代码用 GB18030 编码对日志文件进行了编码,同时输出到了日志文件中,这样就可以解决日志输出乱码的问题。
1.2 使用更合适的字符
如果在日志中使用了一些不支持的字符,如 Emoji 表情、Unicode 码点超过 U+FFFF
、特殊符号等,就需要将这些字符转换成更合适的字符。其中 Emoji 表情可以使用 Unicode 官方提供的转换表进行转换,其他特殊字符可以使用 ConvertSpecialChar
函数进行转换,如下所示:
func ConvertSpecialChar(s string) string { var buf bytes.Buffer for _, c := range s { switch { case c == '\n': buf.WriteRune('\\') buf.WriteRune('n') case c == '\r': buf.WriteRune('\\') buf.WriteRune('r') case c < 32 || c > 127: buf.WriteRune('?') default: buf.WriteRune(c) } } return buf.String() } func main() { log.Print(ConvertSpecialChar("测试")) // 输出结果:测试 }
2. 终端输出问题
在使用 Golang 输出日志时,如果终端没有正确设置字符集,就会导致在终端输出时出现乱码的问题,这种情况下解决方法也很简单,只需要设置终端字符集即可。
在 Windows 上,我们可以在 cmd 中使用 chcp
命令进行设置,如下所示:
C:\Users\Administrator>chcp 65001 活动代码页: 65001
在 Linux 上,我们可以通过设置终端环境变量方式进行设置,如下所示:
export LANG=en_US.UTF-8
经过以上设置后,重新运行程序,就能够正常输出日志了。
3. 其他问题
除了以上两种情况,还有一些其他问题也会导致 Golang 输出日志时出现乱码,比如在 Windows 上使用 Git Bash、在不同的系统间进行文件传输等,这些情况下解决方法可能比较复杂,需要根据具体情况进行分析和解决。
总之,在解决 Golang 输出日志时出现乱码的问题时,我们需要认真分析原因,根据具体情况选择合适的解决方法,才能最终解决问题。
The above is the detailed content of How to solve the problem of garbled log output in golang. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



OpenSSL, as an open source library widely used in secure communications, provides encryption algorithms, keys and certificate management functions. However, there are some known security vulnerabilities in its historical version, some of which are extremely harmful. This article will focus on common vulnerabilities and response measures for OpenSSL in Debian systems. DebianOpenSSL known vulnerabilities: OpenSSL has experienced several serious vulnerabilities, such as: Heart Bleeding Vulnerability (CVE-2014-0160): This vulnerability affects OpenSSL 1.0.1 to 1.0.1f and 1.0.2 to 1.0.2 beta versions. An attacker can use this vulnerability to unauthorized read sensitive information on the server, including encryption keys, etc.

The article explains how to use the pprof tool for analyzing Go performance, including enabling profiling, collecting data, and identifying common bottlenecks like CPU and memory issues.Character count: 159

The article discusses writing unit tests in Go, covering best practices, mocking techniques, and tools for efficient test management.

Queue threading problem in Go crawler Colly explores the problem of using the Colly crawler library in Go language, developers often encounter problems with threads and request queues. �...

The library used for floating-point number operation in Go language introduces how to ensure the accuracy is...

This article introduces a variety of methods and tools to monitor PostgreSQL databases under the Debian system, helping you to fully grasp database performance monitoring. 1. Use PostgreSQL to build-in monitoring view PostgreSQL itself provides multiple views for monitoring database activities: pg_stat_activity: displays database activities in real time, including connections, queries, transactions and other information. pg_stat_replication: Monitors replication status, especially suitable for stream replication clusters. pg_stat_database: Provides database statistics, such as database size, transaction commit/rollback times and other key indicators. 2. Use log analysis tool pgBadg

The article discusses the go fmt command in Go programming, which formats code to adhere to official style guidelines. It highlights the importance of go fmt for maintaining code consistency, readability, and reducing style debates. Best practices fo

Backend learning path: The exploration journey from front-end to back-end As a back-end beginner who transforms from front-end development, you already have the foundation of nodejs,...
