https://github.com/handsomestwei/go-exception

golang error异常处理。提供类似java的try...catch...finally和try...with...resource机制。
https://github.com/handsomestwei/go-exception

golang try-catch-finally

Last synced: 14 days ago
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golang error异常处理。提供类似java的try...catch...finally和try...with...resource机制。

• Host: GitHub
• URL: https://github.com/handsomestwei/go-exception
• Owner: handsomestWei
• License: apache-2.0
• Created: 2020-07-18T04:07:17.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-10-13T02:34:04.000Z (about 4 years ago)
• Last Synced: 2024-12-19T06:07:22.208Z (15 days ago)
• Topics: golang, try-catch-finally
• Language: Go
• Homepage:
• Size: 11.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-exception

golang error异常处理。提供类似java的`try...catch...finally`和`try...with...resource`机制。

# Usage

`try...catch...finally`需要显式调用Throw方法抛出异常才能被外层捕获。

```

tr := exception.NewTrier()

tr.Try(func() {

        // 函数体

	n1, err := strconv.Atoi("123")

	tr.Throw(err)

	n2, err := strconv.Atoi("qwe")

	tr.Throw(err)

	res := n1 / n2

	fmt.Println(res)

}).Catch(func(e Exception) {

        // 捕获异常和异常处理

	fmt.Println("exception:", e)

}).Finally(func() {

        // 事后处理

	fmt.Println("finally")

})

```

`try...with...resource`对象必须实现io.Closer接口，处理结束后实现io自动关闭。

```

f, _ := os.Open("./exception_test.go")

trs := exception.NewTryResource(f)

trs.Try(func() {

        // 函数体

	scanner = bufio.NewScanner(f)

	for scanner.Scan() {

		fmt.Println(scanner.Text())

		break

	}

}).Catch(func(e Exception) {

        // 捕获异常和异常处理

	fmt.Println("exception:", e)

})

// 处理结束后自动关闭io流

```