feat: provide ValidationUtils by default

generators/app/templates/${artifactId}-provider/src/main/java/${basePath}/util/ValidationUtils.tmpl.java

@@ -0,0 +1,41 @@
+package ${basePackage}.util;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import org.springframework.validation.BeanPropertyBindingResult;
+import org.springframework.validation.BindException;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.beanvalidation.SpringValidatorAdapter;
+
+import javax.validation.Validator;
+
+@Component
+public class ValidationUtils {
+    private static Validator validator;
+    private static SpringValidatorAdapter springValidator;
+
+    @Autowired
+    public void setValidator(Validator validator) {
+        ValidationUtils.validator = validator;
+        ValidationUtils.springValidator = new SpringValidatorAdapter(validator);
+    }
+
+    /**
+     * 校验参数，返回详细错误信息
+     */
+    public static <T> BindingResult validate(T target, Class<?>... groups) {
+        BeanPropertyBindingResult errors = new BeanPropertyBindingResult(target, target.getClass().getName());
+        springValidator.validate(target, errors, groups);
+        return errors;
+    }
+
+    /**
+     * 校验参数，如果失败则抛出异常
+     */
+    public static <T> void validateAndThrow(T target, Class<?>... groups) throws BindException {
+        BindingResult errors = validate(target, groups);
+        if (errors.hasErrors()) {
+            throw new BindException(errors);
+        }
+    }
+}

generators/test/app/index.test.js

@@ -339,6 +339,7 @@ required.addProviderClasses([
   'exception/BizErrorResponseStatus.java',
   'config/web/ConverterConfigurer.java',
   'util/ConverterUtils.java',
+  'util/ValidationUtils.java',
   'domain/.gitkeep',
   'domain/dto/.gitkeep',
   'domain/entity/.gitkeep',