使用 Spring Boot 提供 React App 时的 React-Router 问题 [英] React-Router issues when serving React App with Spring Boot

问题描述

我目前需要使用 Spring Boot 为我的 React 应用程序提供服务.它适用于根 url - localhost:8080/，但当然 Spring 控制器无法识别任何子路由.

I'm currently needing to serve my React app with Spring Boot. It is working for the root url - localhost:8080/, but of course none of the sub-routes are recognized by the Spring Controller.

我不知道如何让 React Routing 和 Spring 请求映射在没有硬编码的情况下在每个可能的路由中对齐以映射到 index.html - 然后一些路由有可变子路由.

I'm not sure how to get the React Routing and Spring request mapping to line up without hard-coding in every possible route to map to index.html - and then some of the routes have variable sub-routes.

这是我的 HomeController 服务于 index.html

@Controller
public class HomeController {

    @RequestMapping(value = "/")
    public String index() {
        return "index.html";
    }
}

<小时>

这是我的 React 应用程序中的路由渲染

---

Here is the Routing render in my React App

const Root = ({ store }) => (
  <Provider store={store}>
    <Router history={browserHistory}>
      <Route path="/" component={App}>
        <IndexRedirect to="users"/>
        <Route path="/org" component={OrgSearch}>
          {<Route path="/org/:orgId" component={Org}/>}
        </Route>
        <Route path="/users" component={UserSearch}>
          {<Route path="/users/:userId" component={User} />}
        </Route>
      </Route>
    </Router>
  </Provider>
)

<小时>

非常感谢任何帮助！

---

Any help is greatly appreciated!

我尝试添加一些通配符功能，但它呈现出一些奇怪的行为.这是 HomeController 的更新代码.

I tried adding some wildcard functionality, and it is presenting some strange behavior. Here is the updated code for the HomeController.

@Controller
public class HomeController {

    @RequestMapping(value = {"/", "/users/**", "/org/**"})
    public String index() {
        return "index.html";
    }
}

我可以访问 / 和 /users 但不能访问 /users/ 或 /users/2545.

I can access / and /users but not /users/ or /users/2545.

这是我尝试访问后者时的错误.

Here is the error when I try to access the latter.

2017-04-14 09:21:59.896 ERROR 58840 --- [nio-8080-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Circular view path [index.html]: would dispatch back to the current handler URL [/users/index.html] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)] with root cause

javax.servlet.ServletException: Circular view path [index.html]: would dispatch back to the current handler URL [/users/index.html] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
    at org.springframework.web.servlet.view.InternalResourceView.prepareForRendering(InternalResourceView.java:205) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:145) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1282) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:980) ~[spring-webmvc-4.3.7.RELEASE.jar:4.3.7.RELEASE]

推荐答案

对我来说，我在这个 link.我没有控制器.

For me, I tried the answer in this link. I did not have a controller.

基本上是关于定义 addViewController...

Basically it is about defining the addViewController...

@Configuration
public class WebConfiguration implements WebMvcConfigurer {

  @Override
  public void addViewControllers(ViewControllerRegistry registry) {
      registry.addViewController("/{spring:\\w+}")
            .setViewName("forward:/");
      registry.addViewController("/**/{spring:\\w+}")
            .setViewName("forward:/");
      registry.addViewController("/{spring:\\w+}/**{spring:?!(\\.js|\\.css)$}")
            .setViewName("forward:/");
  }
}

这篇关于使用 Spring Boot 提供 React App 时的 React-Router 问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！