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Today, I will talk to you about how to customize the operation of xsd files in Spring. Many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

1 set the syntax format of html file xsd file

Write the xsd file according to the properties of POJO.

For example

The corresponding POJO is

Public class User {private String name; private String email; public String getName () {return name;} public void setName (String name) {this.name = name;} public String getEmail () {return email;} public void setEmail (String email) {this.email = email;}}

Getter and setter methods for properties are indispensable

You can make the properties of User configurable in xml, such as

Mytest: is the custom namespace name classpath: is the local xsd file loading protocol

2 implement BeanDefinitionParser interface and extension class NamespaceHandlerSupport

Extend the NamespaceHandlerSupport class: implement manual loading of data from XML into BeanDefinitionBuilder

Public class UserBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {protected Class getBeanClass (Element element) {return User.class;} protected void doParse (Element element, BeanDefinitionBuilder bean) {String userName = element.getAttribute ("name"); String email = element.getAttribute ("email"); if (StringUtils.hasText (userName)) {bean.addPropertyValue ("name", userName) } if (StringUtils.hasText (email)) {bean.addPropertyValue ("email", email);}

Implement the BeanDefinitionParser interface: manually register the manual parsing result of POJO

Public class MyNamespaceHandler extends NamespaceHandlerSupport {public void init () {registerBeanDefinitionParser ("user", new UserBeanDefinitionParser ());}}

3 set up Spring.handlers and Spring.schemas files

Configure META-INF/Spring.handlers:

Http\: / / www.zhangyh.com/schema/user=com.zhangyh.xsd.paser.MyNamespaceHandler

When referencing http://www.zhangyh.com/schema/user, MyNamespaceHandler is used to resolve the reference object

Configure META-INF/Spring.schemas

Http\: / / www.zhangyh.com/schema/user.xsd=com.zhangyh.xsd/schema/user.xsd

Load a custom xsd file

After reading the above, do you have any further understanding of how to customize the operation of xsd files in Spring? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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