spring-boot - 无法继续调试

问题描述

我正在处理一个处理重定向属性的 spring boot 项目。我想调试我的应用程序，它在这一点上卡住了。

2020-03-25 20:28:47.785  INFO 13073 --- [           main] .e.d.SpringRedirectattributesApplication : Starting SpringRedirectattributesApplication on rajgopal with PID 13073 (/home/rajgopal/Spring-Boot/spring-redirectattributes/target/classes started by rajgopal in /home/rajgopal/Spring-Boot/spring-redirectattributes)
2020-03-25 20:28:47.792  INFO 13073 --- [           main] .e.d.SpringRedirectattributesApplication : No active profile set, falling back to default profiles: default

这是我的项目结构

我还提供了剩余的代码

SpringRedirectattributesApplication.java

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SpringRedirectattributesApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringRedirectattributesApplication.class, args);
    }

}

WebConfig.java

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

@EnableWebMvc
@ComponentScan(basePackages = { "com.example.demo.controller" })
@Configuration
public class WebConfig implements WebMvcConfigurer {

        @Bean
        public ViewResolver viewResolver() {
            final InternalResourceViewResolver bean = new InternalResourceViewResolver();
            bean.setViewClass(JstlView.class);
            bean.setPrefix("/WEB-INF/view/");
            bean.setSuffix(".jsp");
            return bean;
        }

}

RedirectAttributesExample.java

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import org.springframework.web.servlet.support.RequestContextUtils;
import org.springframework.web.servlet.view.RedirectView;

@Controller
public class RedirectAttributesExample {

    @GetMapping("/redirect")
    public RedirectView redirectWithRedirectAttributes(RedirectAttributes attributes) {

        attributes.addFlashAttribute("flashAttribute", "redirectWithRedirectAttributes");
        attributes.addAttribute("attribute", "redirectWithRedirectAttributes");
        return new RedirectView("redirectedUrl");
    }

    @GetMapping("/redirectedUrl")
    public ModelAndView redirection(ModelMap model, HttpServletRequest request) {

        String some = null, some1 = null;
        Map<String, ?> inputFlashMap = RequestContextUtils.getInputFlashMap(request);
        if (inputFlashMap != null) {
            some = (String) inputFlashMap.get("flashAttribute");
        }
        some1 = (String) ((Model) model).asMap().get("attribute");
        model.addAttribute("redirectionAttribute", some);
        model.addAttribute("redirectionAttribute1", some1);
        return new ModelAndView("redirection", model);
    }
}

重定向.jsp

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
<title>Spring MVC Form Handling</title>
</head>
<body>

    <h2>Submitted  Information</h2>
    <h3></h3>
    <table>
        <tr>
            <td>1. ${redirectionAttribute}</td>
        </tr>
        <tr>
            <td>2. ${redirectionAttribute1}</td>
        </tr>

    </table>
</body>
</html>

pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.baeldung.redirectattributes</groupId>
    <artifactId>spring-redirectattributes</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-redirectattributes</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

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

</project>

谁能帮我继续调试应用程序。调试时遇到此端点时出现连接被拒绝错误。

我正在调试应用程序以检查some1变量的内容

http://localhost:8081/重定向

标签： spring-boot

spring-boot - 无法继续调试

问题描述

解决方案

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