spring boot中实现自定义错误
[英]Implement the custom error in spring boot
问题描述
I want to implement the custom error page in spring boot.
我想在spring boot中实现自定义错误页面。 In the app the id is the primary key so when the id is not given it transfers the request to a page but i want that the app will display the index page with the error message on the index page.在应用程序中，id 是主键，所以当没有给出 id 时，它会将请求传输到页面，但我希望应用程序将在索引页面上显示带有错误消息的索引页面。 the entity class is实体类是
@Entity
public class Employee {
@Id
//@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
//@Id
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
private String name;
private String phone;
}
the index page is索引页是
<!DOCTYPE html>
<html lang="en">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>index page</title>
</head>
<body>
<form action="#" th:action="@{/result}" th:object="${employee}" method="post">
<p>Id: <input type="text" th:field="*{id}" /></p>
<p>name: <input type="text" th:field="*{name}" /></p>
<p>phone: <input type="text" th:field="*{phone}" /></p>
<p><input type="submit" value="Submit" /> <input type="reset" value="Reset" /></p>
</form>
</body>
</html>
I want to show the error on the index page like the id field change the color or there is a message right besides the id column.我想在索引页面上显示错误，例如 id 字段更改颜色或者在 id 列旁边有一条消息。
2 个解决方案
解决方案1
0 2018-11-03 14:44:20
You can do this via javascript/ jQuery, just writing a small function that it is listening on the DOM of the page.您可以通过 javascript/jQuery 做到这一点，只需编写一个小函数，它正在侦听页面的 DOM。 So on click of the submit you can show an error message, show a modal, or get redirected to another generic error page.因此，在单击提交时，您可以显示错误消息、显示模式或重定向到另一个通用错误页面。
If you would like the server to make this control, spring provides amazing apis for validation, search on google for BindingResult Spring.如果您希望服务器进行此控件，spring 提供了惊人的 apis 用于验证，请在 google 上搜索 BindingResult Spring。
The idea behind it is very simple.其背后的想法非常简单。 You controller will get an object from the form and you can validate it via using some annotation on it.您的控制器将从表单中获取一个对象，您可以通过在其上使用一些注释来验证它。
I found this example: https://www.journaldev.com/2668/spring-validation-example-mvc-validator我找到了这个例子： https : //www.journaldev.com/2668/spring-validation-example-mvc-validator
Hope it helps希望能帮助到你
解决方案2
0 2019-11-15 15:59:51
I suggest to develop a customError controller like this example: and affect your error html page on it ( you can do it differently)我建议像这个例子一样开发一个 customError 控制器：并影响你的错误 html 页面（你可以做不同的事情）
@Controller
public class CustomErrorController implements ErrorController{
private static final String PATH = "/error";
private static final org.slf4j.Logger log =
LoggerFactory.getLogger(CustomErrorController.class);
String script_error_page = "<html lang='en' app='HubMonitor'><head><meta
charset='UTF-8'><meta name='viewport' content='width=device-width, initial-
scale=1'><title>Hub Monitor</title><head>......your html code ....</head></html>";
@RequestMapping("/error")
@ResponseBody
public String handleError(HttpServletRequest request) {
return script_error_page;
}
and you can add to your basic controller the test condition, it means when you want to be redirected to the error content.并且您可以将测试条件添加到您的基本控制器，这意味着您希望重定向到错误内容的时间。
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