Spring+Quartz+Dom4j实现一个小项目

目录

1、项目背景

2、技术介绍

3、实现代码

4、程序演示

5、打成jar包

---

1、项目背景

最近在工作中碰到了一个问题，一个叫aura的系统每天都会接收到许多xml，其中有些xml会包含错误信息，这些包含错误信息的xml如果不及时删除并重新导入正确的xml的话，会导致系统中的其他xml无法正常入库。由于每天如果人工处理的话工作量比较大，而且也影响aura系统的日常处理运行，因此开发了一个基于Spring+Quartz+Dom4j实现一个小程序，用来每天处理那些错误的xml，并启动相应的程序重新导入这些xml。

2、技术介绍

Spring：用来降低代码的耦合性，提高程序的执行效率

Quartz：设置定时任务，让程序每天跑一次

Dom4j：修改xml文件

3、实现代码

FileHelper.java

package Tools;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

/**
 * @description:
 * @author: wu linchun
 * @time: 2021/1/31 17:28
 */

public class FileHelper {
    //读取文件中的内容
    public List<String> readFile(File file) throws IOException {
        BufferedReader reader = null;
        StringBuffer sbf = new StringBuffer();
        List<String> ssr = new ArrayList<String>();
        reader = new BufferedReader(new FileReader(file));
        String tempStr;
        while ((tempStr = reader.readLine()) != null) {
            ssr.add(tempStr);
        }
        reader.close();
        return ssr;
    }
}

FoldHelper.java

package Tools;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**
 * @description:
 * @author: wu linchun
 * @time: 2021/1/31 19:17
 */

public class FoldHelper {

    /**
     * 获取某个文件夹里面的所有文件名
     * @param file
     * @return
     */
    public String[] readDirectory(File file) {
        //List<String> fileName_list=new ArrayList<String>();
        String[] fileName_arr = new String[file.list().length];
        if (file.isDirectory()) {
            fileName_arr = file.list();
        }
        return fileName_arr;
    }
}

ConfigHelper.java

package Tools;

import org.dom4j.*;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

/**
 * @description:
 * @author: wu linchun
 * @time: 2021/2/1 20:17
 */

public class ConfigHelper {
    private FileHelper fileHelper;

    public void setFileHelper(FileHelper fileHelper) {
        this.fileHelper = fileHelper;
    }

    /**
     * 修改xml中的指定节点的值
     *
     * @param url
     * @param flag
     * @param defaultFolderlocation
     * @throws DocumentException
     * @throws IOException
     */
    public void setConfig(String url, String flag, String defaultFolderlocation) throws DocumentException, IOException {
        SAXReader reader = new SAXReader();
        Document document = reader.read(new File(url));
        Element root = document.getRootElement();

        // 获取第一个节点
        Element flagNode = (Element) root.elements("Flag").get(0);
        Element defaultFolderlocationNode = (Element) root.elements("DefaultFolderlocation").get(0);

        // 设置<flag>节点的值
        flagNode.setText(flag);

        defaultFolderlocationNode.setText(defaultFolderlocation);

        // 格式化输出流，同时指定编码格式。也可以在FileOutputStream中指定。
        OutputFormat format = OutputFormat.createPrettyPrint();
        format.setEncoding("utf-8");

        XMLWriter writer = new XMLWriter(new FileOutputStream(url), format);
        writer.write(document);
        writer.close();

    }
}

Deal.java

package Tools;

import java.io.File;
import java.io.IOException;
import java.util.List;

/**
 * @description:
 * @author: wu linchun
 * @time: 2021/1/31 19:31
 */

public class Deal {

    private FileHelper fileHelper;
    private FoldHelper foldHelper;

    public void setFileHelper(FileHelper fileHelper) {
        this.fileHelper = fileHelper;
    }

    public void setDirectoryHelper(FoldHelper foldHelper) {
        this.foldHelper = foldHelper;
    }

    /**
     * 找出文件名以“_U_output.xml”结尾的，且xml内含有"insured is null"的xml并将其删除
     *
     * @param file
     * @throws IOException
     */
    public void deal_file(File file) throws IOException {
        String[] fileName_arr = foldHelper.readDirectory(file);
        for (String ss : fileName_arr) {
            if (ss.contains("_U_output.xml")) {
                String file_path = file.getAbsolutePath() + "\\" + ss;
                System.out.println(file_path);
                File target_file = new File(file_path);
                List<String> testList = fileHelper.readFile(target_file);
                if (fileHelper.readFile(target_file).get(1).contains(" insured is null")) {
                    target_file.delete();
                    System.out.println("delete" + " " + file_path);
                }
            }
        }
    }
}

MyJob.java

package MyJob;

import Tools.ConfigHelper;
import Tools.Deal;
import org.dom4j.DocumentException;
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @description: 设置定时任务要执行的工作
 * @author: wu linchun
 * @time: 2021/1/31 20:48
 */

public class MyJob implements Job {

    @Override
    public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("bean.xml");
        Deal deal = (Deal) applicationContext.getBean("deal");
        ConfigHelper configHelper = (ConfigHelper) applicationContext.getBean("confighelper");

        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        Date date = new Date();
        String fold = String.valueOf(sdf.format(date));
        File file = new File("D:\\aura\\mlc\\xml\\state\\mlc_bak\\" + fold);
        try {
            deal.deal_file(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println(fold);
        //System.out.println("<Flag>修改为False");
        String url = "D:\\aura\\mlc_ExtractDecision\\config\\config.xml";

        //把<Flag>节点改为false,并修改要跑的文件夹
        try {
            configHelper.setConfig(url, "False", "D:/aura/mlc/xml/state/mlc_bak/" + fold);
        } catch (DocumentException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("<Flag>修改为False");
        System.out.println("<DefaultFolderlocation>文件夹修改为" + fold);

        //执行ExtractDecision.bat
        String cmd = "cmd /c start D:\\aura\\mlc_ExtractDecision\\ExtractDecision.bat";
        try {
            Runtime.getRuntime().exec("cmd  /c  start D:\\aura\\mlc_ExtractDecision\\ExtractDecision.bat");
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("执行了ExtractDecision.bat");
        //把<Flag>节点改为True
        try {
            configHelper.setConfig(url, "True", "D:/aura/mlc/xml/state/mlc_bak/" + fold);
        } catch (DocumentException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("<Flag>修改为True");
    }
}

Run.java

import MyJob.MyJob;
import Tools.Deal;
import org.quartz.*;
import org.quartz.impl.StdSchedulerFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.io.File;
import java.io.IOException;

/**
 * @description: 启动类
 * @author: wu linchun
 * @time: 2021/1/31 19:07
 */

public class Run {
    public static void main(String[] args) throws IOException, SchedulerException {
        //1、调度器(Schedular)，从工厂中获取调度实例（默认：实例化new StdSchedulerFactory();)
        Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();
        //2、任务实例（JobDetail）
        JobDetail jobDetail = JobBuilder.newJob(MyJob.class) //加载任务类，与HelloJob完成绑定，要求HelloJob实现Job接口
                .withIdentity("job1", "group1") //参数1：任务的名称（唯一实例）；参数2：任务组的名称
                .build();
        //3、触发器（Trigger）
        Trigger trigger = TriggerBuilder.newTrigger()
                .withIdentity("trigger1", "group1") //参数1：触发器的名称（唯一实例）；参数2：触发器组的名称
                .startNow() //马上启动触发器
                .withSchedule(SimpleScheduleBuilder.repeatSecondlyForever(15)) //这里的15为每15秒执行一次
                .build();
        //让调度器关联任务和触发器，保证按照触发器定义的条件执行任务
        scheduler.scheduleJob(jobDetail, trigger);
        //启动
        scheduler.start();
    }
}

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>aura_monitor</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>commons-dbutils</groupId>
            <artifactId>commons-dbutils</artifactId>
            <version>1.4</version>
        </dependency>
        <!--核心包-->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>2.3.2</version>
        </dependency>
        <!--工具-->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz-jobs</artifactId>
            <version>2.3.2</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.7</version>
            <scope>compile</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>

    </dependencies>

    <build>
        <finalName>dscApp</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <!-- JAR Maven 管理-->
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <archive>
                        <manifest>
                            <!-- 配置主程序 java -jar 默认Class -->
                            <addClasspath>true</addClasspath>
                            <classpathPrefix>lib/</classpathPrefix>
                            <!--Main程序入口-->
                            <mainClass>Run</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
            <!-- maven 打包集成插件 -->
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <descriptorRefs>
                        <!-- 将依赖一起打包到 JAR -->
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <!-- 配置主程序 java -jar 默认Class -->
                            <addClasspath>true</addClasspath>
                            <classpathPrefix>lib/</classpathPrefix>
                            <!--Main程序入口-->
                            <mainClass>Run</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

bean.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="foldHelper" class="Tools.FoldHelper" scope="prototype"></bean>

    <bean id="fileHelper" class="Tools.FileHelper" scope="prototype"></bean>

    <bean id="deal" class="Tools.Deal" scope="prototype">
        <property name="directoryHelper" ref="foldHelper"></property>
        <property name="fileHelper" ref="fileHelper"></property>
    </bean>

    <bean id="confighelper" class="Tools.ConfigHelper" scope="prototype">
        <property name="fileHelper" ref="fileHelper"></property>
    </bean>

</beans>

4、程序演示

先在MyJob.java中打一个断点，方便一步一步演示程序

5、打成jar包

在pom.xml中添加打包

 <build>
        <finalName>dscApp</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <!-- JAR Maven 管理-->
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <archive>
                        <manifest>
                            <!-- 配置主程序 java -jar 默认Class -->
                            <addClasspath>true</addClasspath>
                            <classpathPrefix>lib/</classpathPrefix>
                            <!--Main程序入口-->
                            <mainClass>Run</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
            <!-- maven 打包集成插件 -->
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <descriptorRefs>
                        <!-- 将依赖一起打包到 JAR -->
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <!-- 配置主程序 java -jar 默认Class -->
                            <addClasspath>true</addClasspath>
                            <classpathPrefix>lib/</classpathPrefix>
                            <!--Main程序入口-->
                            <mainClass>Run</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>

依赖（注意：因为是maven项目，所有相应导入的依赖也要一起打进jar包）

使用 java -jar 命令启动jar包