Wildfly 21 -如何自定义Bean验证异常的返回

<global-modules>
    <module name="javax.validation.api" slot="main"/>
</global-modules>

<server name="default-server">
    <http-listener name="default" socket-binding="http" redirect-socket="https" enable-http2="true"/>
    <host name="default-host" alias="localhost">
        <filter-ref name="custom-validation-filter" predicate="path-suffix['.action']"/>
    </host>
</server>

<filter name="custom-validation-filter" class-name="org.wildfly.extension.undertow.CustomValidationFilter"/>

public class CustomValidationFilter implements ServletExtension {
    @Override
    public void handleDeployment(DeploymentInfo deploymentInfo, ServletContext servletContext) {
        deploymentInfo.addInitialHandlerChainWrapper(new HandlerWrapper() {
            @Override
            public HttpHandler wrap(HttpHandler handler) {
                return new CustomValidationHandler(handler);
            }
        });
    }
}

public class CustomValidationHandler implements HttpHandler {
    private HttpHandler next;

    public CustomValidationHandler(HttpHandler next) {
        this.next = next;
    }

    @Override
    public void handleRequest(HttpServerExchange exchange) throws Exception {
        try {
            // 执行下一个处理器
            next.handleRequest(exchange);
        } catch (ConstraintViolationException e) {
            // 处理验证异常
            // 自定义异常处理逻辑
        }
    }
}