1. 扩展说明

参数验证扩展点。

2. 扩展接口

com.alibaba.dubbo.validation.Validation

3. 扩展配置
<dubbo:service validation="xxx,yyy" />
<dubbo:provider validation="xxx,yyy" /> <!-- 缺省值设置,当<dubbo:service>没有配置validation属性时,使用此配置 -->
4. 已知扩展

com.alibaba.dubbo.validation.support.jvalidation.JValidation

5. 扩展示例

Maven项目结构

src
 |-main
    |-java
        |-com
            |-xxx
                |-XxxValidation.java (实现Validation接口)
    |-resources
        |-META-INF
            |-dubbo
                |-com.alibaba.dubbo.validation.Validation (纯文本文件,内容为:xxx=com.xxx.XxxValidation)

XxxValidation.java

package com.xxx;

import com.alibaba.dubbo.validation.Validation;

public class XxxValidation implements Validation {
    public Object getValidator(URL url) {
        // ...
    }
}

XxxValidator.java

package com.xxx;

import com.alibaba.dubbo.validation.Validator;

public class XxxValidator implements Validator {
    public XxxValidator(URL url) {
        // ...
    }
    public void validate(Invocation invocation) throws Exception {
        // ...
    }
}

META-INF/dubbo/com.alibaba.dubbo.validation.Validation

xxx=com.xxx.XxxValidation

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