我们如何从 Spring Boot 控制器重定向到所需的 Angular 页面（路由页面） - Angular 集成在 Spring Boot 内部

I have integrated angular application inside spring boot application.. i.e. angular build files are placed inside static folder of spring boot application like following image.

I have defined two angular routing urls like

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

当我访问上面时urls从浏览器，其中are handled by server（Spring Boot应用程序）直接和not by the angular. so I end up in page not found.

We can redirect to index page像这样从 Spring Boot 开始

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

but we can only redirect to index.html page not to routing urls "/pageone" or "/pagetwo".

我不想最终进入索引页。

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。

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";
    }
}

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

应用程序路由.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 and implements ErrorController

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

After that angular automatically load requested page (routing url)