Springboot Controller重定向无法正常工作

Question

I am trying a quick prototype using Spring boot.

I have the following Controller code minus the imports

@EnableAutoConfiguration
@RestController
@Controller
public class IndexController{
    @RequestMapping(value = "/")
    public ModelAndView firstPage(HttpServletRequest request, HttpServletResponse response){
        ModelAndView mv = new ModelAndView("index");
        mv.addObject("message", Calendar.getInstance().getTime().toString());
        return mv;
    }
    @RequestMapping(value="/gotoNextPage",method = RequestMethod.GET)
    public  ModelAndView gotoNextPage(HttpServletRequest request, HttpServletResponse response){
        System.out.println("Inside gotoNextPage!!!!!!");
        ModelAndView mv = new ModelAndView("redirect:nextpage");
        mv.addObject("message", "next page");
        return mv;
    }
}

From my HTML, I invoke the /gotoNextPage and in my Server, I see the Inside gotoNextPage!!!! print statement. However, the nextPage doesn't load. If I don't use redirect and I type http://localhost:8080/gotoNextPage , the HTML content loads fine. Also, the index.html also loads fine

I am using spring boot mvc, thymeleaf, angularjs

My project structure is shown below: enter image description here

My POM XML file dependencies are shown below:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>ng-spring-boot-helloworld</groupId>
    <artifactId>ng-spring-boot-helloworld</artifactId>
    <version>1.0.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.2.0.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.hsqldb</groupId>
                <artifactId>hsqldb</artifactId>
                <version>2.3.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
                <version>1.2.7.RELEASE</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.hsqldb</groupId>
            <artifactId>hsqldb</artifactId>
            <scope>runtime</scope>
        </dependency>
    </dependencies>

</project>

Please help.

Thanks in advance.

Answer 1

I'd try to simplify the method to use Model and return a simple String :

@RequestMapping(value="/gotoNextPage",method = RequestMethod.GET)
public String gotoNextPage(Model model){
    LOG.debug("Inside gotoNextPage!!!!!!");
    model.addAttribute("message", "next page");
    return "redirect:nextpage.html";
}

Answer 2

Try to use RedirectView explicite

@RequestMapping(value="/gotoNextPage",method = RequestMethod.GET)
public  ModelAndView gotoNextPage(HttpServletRequest request, HttpServletResponse response){
    System.out.println("Inside gotoNextPage!!!!!!");

    ModelMap model = new ModelMap();
    model.add("message", "next page");
    return new ModelAndView(
       new RedirectView("/nextpage", true),
       //or new RedirectView("/nextpage.html", true),
       model
    );
}

Answer 3

The problem was making a call through xmlhttprequest object on the client end. I had to handle the completion of the event. I got rid of the $http.get call on the client and did a window.location.href instead. My controller redirects and the page loads automatically.

Answer 4

If you want to use "redirect:" with springboot,You must inject "InternalResourceViewResolver".Although Spring Boot provides auto-configuration,if you use "@EnableWebMvc","InternalResourceViewResolver" will not inject. look here

Answer 5

If you are trying to redirect and it does not work, remember that you mustn't put the @ResponseBody annotation.

So, this will not work:

@PostMapping(value = "/agregar")
@ResponseBody // Annotation here
public String guardarProducto() {
    // magic here
    return "redirect:/productos/mostrar";
}

But this will do (remove the @ResponseBody Annotation):

@PostMapping(value = "/agregar")
public String guardarProducto() {
    // magic here
    return "redirect:/productos/mostrar";
}

More info about redirect in Spring Boot here .