转发给JSP表单提交后的春天控制器内(Forward to JSP within Spring Co

使用Spring @Controller ， @RequestMapping和@ModelAttribute ，我想实现在用户被转发到一个新的JSP设置属性的基本形式提交流程。 Spring提供了不同的方式来实现这一点，但我收到的各种错误。

实施例1基于教程： https://www.baeldung.com/spring-mvc-form-tutorial

form.html

<form action="/submitForm" method="POST">
    <input type="text"id="field1" name="field1">
    <!-- other input fields -->
    <button type="submit">Submit</button>
</form>

的success.jsp

<p>Thanks for signing up ${userName}!!</p>

MyController.java

@Controller
public class MyController{

    @RequestMapping(
            value = "/submitForm", 
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    public String post(@ModelAttribute SignupRequest request, ModelMap model){
        // At this point, the SignupRequest is populated correctly 
        model.addAttribute("userName", request.getUserName());

        return "success";
    }
}

结果

1. 使用return "success" -结果是HTTP 404未找到
2. 使用return "success.jsp" ，结果是HTTP 405请求方法“POST”不支持
3. 使用return "redirect:/success.jsp" ，客户端将被重定向，但是属性没有设置，和$ {用户名}是可见的。

基于此接受的答案示例2： Spring MVC中POST方法后重定向

MyController.java

@Controller
public class MyController{

    @RequestMapping(
            value = "/submitForm", 
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    public ModelAndView post(@ModelAttribute SignupRequest request){
        // At this point, the SignupRequest is populated correctly 

        ModelAndView mAV = new ModelAndView("redirect:/success.jsp");
        mAV.addObject("userName", request.getUserName());

        return mAV;
    }
}

结果客户端被重定向，但是属性没有设置，和$ {用户名}是可见的。

什么是这样做的正确方法？

谢谢！

修改的其他详情使用SpringBoot嵌入的Tomcat。 位于JSP文件src>main>resources>public 。 原始JSP正担任。 我相信这个项目不会处理JSP，因为它应该。 添加POM DEPS。

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>18.0</version>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-email</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-impl</artifactId>
            <version>2.2.11</version>
        </dependency>
        <dependency>
            <groupId>javax.xml.bind</groupId>
            <artifactId>jaxb-api</artifactId>
        </dependency>
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-core</artifactId>
            <version>2.2.11</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.23.1-GA</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.5</version>
        </dependency>
    </dependencies>

Answer 1:

@Controller
public class MyController{

    @RequestMapping(
            value = "/submitForm", 
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    public RedirectView post(@ModelAttribute SignupRequest request, RedirectAttributes ra){
        // At this point, the SignupRequest is populated correctly 

        RedirectView rw = new RedirectView();
        rw.setUrl("success.jsp");
        ra.addFlashAttribute("userName", request.getUserName());

        return rw;
    }
}

文章来源: Forward to JSP within Spring Controller after form submission