参数验证扩展点。
org.apache.dubbo.validation.Validation
<dubbo:service validation="xxx,yyy" />
<!-- 缺省值设置,当<dubbo:service>没有配置validation属性时,使用此配置 -->
<dubbo:provider validation="xxx,yyy" />
org.apache.dubbo.validation.support.jvalidation.JValidation
Maven 项目结构:
src
|-main
|-java
|-com
|-xxx
|-XxxValidation.java (实现Validation接口)
|-resources
|-META-INF
|-dubbo
|-org.apache.dubbo.validation.Validation (纯文本文件,内容为:xxx=com.xxx.XxxValidation)
XxxValidation.java:
package com.xxx;
import org.apache.dubbo.validation.Validation;
public class XxxValidation implements Validation {
public Object getValidator(URL url) {
// ...
}
}
XxxValidator.java:
package com.xxx;
import org.apache.dubbo.validation.Validator;
public class XxxValidator implements Validator {
public XxxValidator(URL url) {
// ...
}
public void validate(Invocation invocation) throws Exception {
// ...
}
}
META-INF/dubbo/org.apache.dubbo.validation.Validation:
xxx=com.xxx.XxxValidation