Java Spring验证在提交事务时抛出错误

更新 根据下面的建议，我将

<dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>4.3.1.Final</version>
        </dependency>

结果是另一个例外：

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.validation.BindingResult]: Specified class is an interface

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.TransactionSystemException: Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Error while committing the transaction
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)

我试图让Spring进入一个验证表单字段。我已将Hibernate验证设置为依赖项：

    <dependency>
      <groupId>org.hibernate.javax.persistence</groupId>
      <artifactId>hibernate-jpa-2.0-api</artifactId>
      <version>1.0.1.Final</version>
    </dependency>

在对象模型中，我有：

  @Column(
    name                                     = "description",
    nullable                                 = false
  )
  private String            description;

最后，在控制器中，我有：

    public String updateProducts(
        @Valid @ModelAttribute("updateProductsForm") UpdateProductsForm updateProductsForm, 
        ModelMap modelMap, BindingResult result) {

        List<Product> products = (List<Product>) modelMap.get("products");

        if (result.hasErrors()) {

        modelMap.addAttribute("products", products);
        modelMap.addAttribute("errors", result.getAllErrors());

        return "updateProducts";
    }

说明服务器遇到内部错误，无法满足此请求。如果我从产品对象中删除验证，一切都会正常工作（只是没有验证）

例外情况：

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.validation.BindingResult]: Specified class is an interface

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.TransactionSystemException: Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Error while committing the transaction
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)

---

您没有设置验证，只有jpa。您需要hibernate验证器进行验证

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>4.3.1.Final</version>
</dependency>

org.hibernate
休眠验证器
4.3.1.最终版本

是验证程序的依赖项

---

接下来，

BindingResult

必须直接跟随

@modeldattribute

注释属性，因此在控制器方法中也切换

ModelMap

和

BindingResult

属性。

和？它起作用了吗？如果没有，请发布完整的stacktrace，并显示spring mvc配置。（并告诉我们您使用的是哪个Spring版本）。

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>4.3.1.Final</version>
</dependency>