如何在Rest API中直接在JPA级别获取用户信息 [英] How to get user info directly at JPA level in rest api

问题描述

我将REST api与JPA一起使用，并在标头部分获取用户信息. 出于审计目的，需要在每个请求中保存用户详细信息. 如何从其余标头直接获取JPA级别的用户信息(@Prepersist和@PreUpdate挂钩).

I am using REST api with JPA, and getting the user information in the header section . For audit purpose need to save the user detail with each request. How to directly get the user info at JPA level (@Prepersist and @PreUpdate hooks) from rest header.

我不想通过服务层传递详细信息 有什么通用的方法吗?

I don't want to pass the details though service layer Is there any generic way to do it ?

注意-我没有用弹簧.

谢谢.

推荐答案

spring框架也有类似的问题.遵循以下想法可能会对您有所帮助.

I had the similar problem with spring framework. Following idea may help you.

1. 使用ThreadLocal创建AppContext

1. Create AppContext using ThreadLocal

public class AppContext {

private static final ThreadLocal<User> currentUser = new ThreadLocal<>();

public static void setCurrentUser(String tenant) {
    currentUser.set(tenant);
}

public static String getCurrentUser() {
    return currentUser.get();
}

public static void clear() {
    currentUser.remove();
}

}

使用过滤器或类似工具从http标头中获取用户并设置为AppContext

Use filter or similar to get user from http header and set to the AppContext

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    HttpServletRequest httpRequest = (HttpServletRequest) request;

     // Your code to extract user info from header
     // Build user object and set to the AppContext
     AppContext.setCurrentUser(user);

    //doFilter
    chain.doFilter(httpRequest, response);
}

在存储库上使用AppContext.它应该在请求范围内可用.

Use AppContext on the repository. It should available on request scope.

  @PrePersist
  public void onPrePersist() {
    if(AppContext.getCurrentUser() != null){
        this.user = AppContext.getCurrentUser();
     }
}

}

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