我们如何从 spring 引导控制器重定向到所需的 angular 页面（路由页面） - angular 集成在 spring 引导中

Question

我已将 angular 应用程序集成到 spring 启动应用程序中。即 angular 构建文件放置在 spring 启动应用程序的静态文件夹中，如下图所示。

I have defined two angular routing urls like

 1. http://localhost:8080/pageone
 2. http://localhost:8080/pagetwo

当我从浏览器访问上面 urls 时，are handled by server（spring 启动应用程序）直接和 not by the angular。所以 I end up in page not found.

We can redirect to index page 从 spring 这样引导

@GetMapping("/")
public RedirectView welcome(RedirectAttributes attributes) {
    //attributes.addFlashAttribute("flashAttribute", "redirectWithRedirectView");
    //attributes.addAttribute("pageToRequest", "paymentoverview");
    return new RedirectView("index.html");
}

but 我们可以 only redirect to index.html 页 not to routing urls "/pageone" or "/pagetwo".

我不想在索引页结束。

Somehow I wan't to end up in respective page that I accessed from browser automatically, 
even after redirect to index page also fine.

我尝试将属性与 index.html 一起发送，但它不起作用。我们如何解决这个问题。

Answer 1

我找到了解决方案..

从浏览器访问以下网址

1. http://localhost:8080/pageone
2. http://localhost:8080/pagetwo

请求将直接到达 spring 控制器，并由下面的控制器处理

@Controller // should not be @RestController
public class BaseController implements ErrorController { // implement ErrorController to handle 404 (error pages)

    // Always redirect to index.html page (only option)

    // Can handle all request (which end up in 404)
    @GetMapping("/error")
    public String error() {
        return "forward:/index.html";
    }

    // Specific request 
    @GetMapping("/pageone")
    public String pageone() {
        return "forward:/index.html";
    }

    // Specific request with pathvariable and requestparam
    @GetMapping("/pagetwo" + "/{id}")
    public String pagetwo(@PathVariable("id") String id,
                                  @RequestParam("param1") String param1,
                                  @RequestParam("param2") String param2 ) {
        // both pathvariable and requestparam will be sent to front end
        return "forward:/index.html";
    }
}

索引页面将在 angular 自动加载请求的页面后调度，例如：'/pageone' 或 'pagetwo'

应用-routing.modules.ts

const routes: Routes = [
  {
    path: 'pageone',
    component: PageOneComponent
  },
  {
    path: 'pagetwo/:id', // to handle pathvariables
    component: PageTwoComponent
  },
  {
    path: '**',
    component: HomeComponent
  }
  ]

您可以访问接收到的路径变量和请求参数，如下所示

PageTwoComponent.ts

  ngOnInit(): void {
    console.log(this.route.snapshot.paramMap.get('id')); // get pathparms
    this.route.queryParams.subscribe(params => { // get queryparams
      console.log(params['param1']);
      console.log(params['param2']);
  });
  }

简而言之，@Controller和implements ErrorController

@GetMapping("/error")
public String error() {
   return "forward:/index.html";
}

After that angular automatically load requested page (routing url)

我们如何从 spring 引导控制器重定向到所需的 angular 页面（路由页面） - angular 集成在 spring 引导中

How can we redirect to required angular page (routing page) from spring boot controller - angular integrated inside spring boot

redirect

angular-routing

spring-boot

angular