Question

我正在运行来自here的Spring Batch示例，因为它没有改变任何内容，但是当我尝试运行项目时，我得到了以下输出。此外MongoDB未显示任何集合。请尽快指导我这里有什么问题。

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exit Status : UNKNOWN

此外MongoDB未显示任何收藏品：

> use test
switched to db test
> show collections
system.indexes
>

ReportConverter.java

package com.mkyong.converter;

import java.math.BigDecimal;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import com.mkyong.model.Report;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

//http://x-stream.github.io/converter-tutorial.html
public class ReportConverter implements Converter {

    @Override
    public boolean canConvert(Class type) {
        //we only need "Report" object
        return type.equals(Report.class);
    }

    @Override
    public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
        // TODO Auto-generated method stub

    }

    @Override
    public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {

        Report obj = new Report();

        //get attribute
        obj.setId(Integer.valueOf(reader.getAttribute("id")));
        reader.moveDown(); //get date

        Date date = null;
        try {
            date = new SimpleDateFormat("M/d/yyyy").parse(reader.getValue());
        } catch (ParseException e) {
            e.printStackTrace();
        }
        obj.setDate(date);
        reader.moveUp();

        reader.moveDown(); //get impression

        String impression = reader.getValue();
        NumberFormat format = NumberFormat.getInstance(Locale.US);
        Number number = 0;
        try {
            number = format.parse(impression);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        obj.setImpression(number.longValue());

        reader.moveUp();

        reader.moveDown(); //get click
        obj.setClicks(Integer.valueOf(reader.getValue()));
        reader.moveUp();

        reader.moveDown(); //get earning
        obj.setEarning(new BigDecimal(reader.getValue()));
        reader.moveUp();

        return obj;
    }
}

database.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mongo="http://www.springframework.org/schema/data/mongo" 
    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-3.2.xsd
        http://www.springframework.org/schema/data/mongo
        http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd">

    <!-- connect to mongodb -->
    <mongo:mongo host="127.0.0.1" port="27017" />
    <mongo:db-factory dbname="test" />

    <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
        <constructor-arg name="mongoDbFactory" ref="mongoDbFactory" />
    </bean>

</beans>

context.xml中

<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-3.2.xsd">

    <!-- stored job-meta in database
    <bean id="jobRepository"
        class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManager" />
        <property name="databaseType" value="mysql" />
    </bean>

    <bean id="transactionManager"
        class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" />
    -->

    <!-- stored job-meta in memory --> 
    <bean id="jobRepository"
        class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean">
        <property name="transactionManager" ref="transactionManager" />
    </bean>

    <bean id="transactionManager"
        class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" />


    <bean id="jobLauncher"
        class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
        <property name="jobRepository" ref="jobRepository" />
    </bean>

</beans>

JobReport.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:batch="http://www.springframework.org/schema/batch" xmlns:task="http://www.springframework.org/schema/task"
    xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/batch
        http://www.springframework.org/schema/batch/spring-batch-2.2.xsd
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/util 
        http://www.springframework.org/schema/util/spring-util-3.2.xsd">

    <batch:job id="reportJob">
        <batch:step id="step1">
            <batch:tasklet>
                <batch:chunk reader="xmlItemReader" writer="mongodbItemWriter"
                    commit-interval="1">
                </batch:chunk>
            </batch:tasklet>
        </batch:step>
    </batch:job>

    <bean id="mongodbItemWriter" class="org.springframework.batch.item.data.MongoItemWriter">
        <property name="template" ref="mongoTemplate" />
        <property name="collection" value="report" />
    </bean>

    <bean id="xmlItemReader" class="org.springframework.batch.item.xml.StaxEventItemReader">
        <property name="fragmentRootElementName" value="record" />
        <property name="resource" value="classpath:xml/report.xml" />
        <property name="unmarshaller" ref="reportUnmarshaller" />
    </bean>

    <bean id="reportUnmarshaller" class="org.springframework.oxm.xstream.XStreamMarshaller">

        <property name="aliases">
            <util:map id="aliases">
                <entry key="record" value="com.mkyong.model.Report" />

                <!-- 
                <entry key="date" value="java.lang.String" />
                <entry key="impression" value="java.lang.Long" />
                <entry key="clicks" value="java.lang.Integer" />
                <entry key="earning" value="java.math.BigDecimal" />
                 -->
            </util:map>
        </property>

        <property name="converters">
            <array>
                <ref bean="reportConverter" />
            </array>
        </property>

    </bean>

    <bean id="reportConverter" class="com.mkyong.converter.ReportConverter" />

</beans>

的pom.xml：

<properties>
        <jdk.version>1.6</jdk.version>
        <spring.version>3.2.2.RELEASE</spring.version>
        <spring.batch.version>2.2.0.RELEASE</spring.batch.version>
        <spring.data.version>1.2.1.RELEASE</spring.data.version>
        <mongodb.driver.version>2.11.2</mongodb.driver.version>
    </properties>

    <dependencies>

        <!-- Spring Core -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- Spring XML to/back object -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-oxm</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- Spring Batch dependencies -->
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-core</artifactId>
            <version>${spring.batch.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-infrastructure</artifactId>
            <version>${spring.batch.version}</version>
        </dependency>

        <!-- Spring Batch unit test -->
        <dependency>
            <groupId>org.springframework.batch</groupId>
            <artifactId>spring-batch-test</artifactId>
            <version>${spring.batch.version}</version>
        </dependency>

        <!-- MongoDB database driver -->
        <dependency>
            <groupId>org.mongodb</groupId>
            <artifactId>mongo-java-driver</artifactId>
            <version>${mongodb.driver.version}</version>
        </dependency>

        <!-- Spring data mongodb -->
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-mongodb</artifactId>
            <version>${spring.data.version}</version>
        </dependency>

        <!-- Junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>

        <!-- Testng -->
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.8.5</version>
            <scope>test</scope>
        </dependency>

    </dependencies>

Answer 1

我可以通过进行以下更改来运行此代码。请参阅代码的的pom.xml

<properties>  <java.version>1.8</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <spring.version>4.2.4.RELEASE</spring.version> <spring.batch.version>3.0.6.RELEASE</spring.batch.version> <spring.data.version>1.8.4.RELEASE</spring.data.version> <mongodb.driver.version>3.1.1</mongodb.driver.version>  <logback.version>1.0.13</logback.version> <slf4j.version>1.7.5</slf4j.version> <jcl.slf4j.version>1.7.12</jcl.slf4j.version>  <junit.version>4.11</junit.version> </properties> <dependencies>  <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency>  <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>${spring.version}</version> </dependency>  <dependency> <groupId>org.springframework.batch</groupId> <artifactId>spring-batch-core</artifactId> <version>${spring.batch.version}</version> </dependency> <dependency> <groupId>org.springframework.batch</groupId> <artifactId>spring-batch-infrastructure</artifactId> <version>${spring.batch.version}</version> </dependency>  <dependency> <groupId>org.springframework.batch</groupId> <artifactId>spring-batch-test</artifactId> <version>${spring.batch.version}</version> </dependency>  <dependency> <groupId>org.mongodb</groupId> <artifactId>mongo-java-driver</artifactId> <version>${mongodb.driver.version}</version> </dependency>  <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> <scope>compile</scope> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>${logback.version}</version> <scope>runtime</scope> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>jcl-over-slf4j</artifactId> <version>${jcl.slf4j.version}</version> </dependency>  <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>${spring.data.version}</version> </dependency>  <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency>  <dependency> <groupId>org.testng</groupId> <artifactId>testng</artifactId> <version>6.8.5</version> <scope>test</scope> </dependency> </dependencies>

<强> ReportConverter.java

public class ReportConverter implements Converter { @Override public boolean canConvert(Class type) { //we only need "Report" object return type.equals(Report.class); } @Override public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) { } @Override public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) { Report obj = new Report(); //get attribute obj.setId(Integer.valueOf(reader.getAttribute("id"))); reader.moveDown(); //get date Date date = null; try { date = new SimpleDateFormat("MM/dd/yyyy").parse(reader.getValue()); } catch (ParseException e) { e.printStackTrace(); } obj.setDate(date); reader.moveUp(); reader.moveDown(); //get impression String impression = reader.getValue(); NumberFormat format = NumberFormat.getInstance(Locale.US); Number number = 0; try { number = format.parse(impression); } catch (ParseException e) { e.printStackTrace(); } obj.setImpression(number.longValue()); reader.moveUp(); reader.moveDown(); //get click obj.setClicks(Integer.valueOf(reader.getValue())); reader.moveUp(); reader.moveDown(); //get earning obj.setEarning(new BigDecimal(reader.getValue())); reader.moveUp(); return obj; } }

<强> Report.java

public class Report implements Serializable{ private static final long serialVersionUID = 1L; private int id; private Date date; private long impression; private int clicks; private BigDecimal earning; public int getId() { return id; } public void setId(int id) { this.id = id; } public Date getDate() { return date; } public void setDate(Date date) { this.date = date; } public long getImpression() { return impression; } public void setImpression(long impression) { this.impression = impression; } public int getClicks() { return clicks; } public void setClicks(int clicks) { this.clicks = clicks; } public BigDecimal getEarning() { return earning; } public void setEarning(BigDecimal earning) { this.earning = earning; } @Override public String toString() { SimpleDateFormat dateFormatter = new SimpleDateFormat("M/d/yyyy"); return "Report [id=" + id + ", date=" + dateFormatter.format(date) + ", impression=" + impression + ", clicks=" + clicks + ", earning=" + earning + "]"; } }

<强> App.java

public class App { public static void main(String[] args) { String[] springConfig = { "spring/batch/config/database.xml", "spring/batch/config/context.xml", "spring/batch/jobs/job-report.xml" }; ApplicationContext context = new ClassPathXmlApplicationContext(springConfig); JobLauncher jobLauncher = (JobLauncher) context.getBean("jobLauncher"); Job job = (Job) context.getBean("reportJob"); try { JobExecution execution = jobLauncher.run(job, new JobParameters()); System.out.println("Exit Status : " + execution.getStatus()); } catch (Exception e) { e.printStackTrace(); } System.out.println("Done"); } }

<强> database.xml

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mongo="http://www.springframework.org/schema/data/mongo" 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-3.2.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd">  <mongo:mongo host="127.0.0.1" port="27017" /> <mongo:db-factory dbname="yourdb" /> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg name="mongoDbFactory" ref="mongoDbFactory" /> </bean> </beans>

<强> context.xml中

<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-3.2.xsd">  <bean id="jobRepository" class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean"> <property name="transactionManager" ref="transactionManager" /> </bean> <bean id="transactionManager" class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" /> <bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher"> <property name="jobRepository" ref="jobRepository" /> </bean> </beans>

<强>作业-report.xml将

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:batch="http://www.springframework.org/schema/batch" xmlns:task="http://www.springframework.org/schema/task" xmlns:util="http://www.springframework.org/schema/util" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/batch http://www.springframework.org/schema/batch/spring-batch-2.2.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd"> <batch:job id="reportJob"> <batch:step id="step1"> <batch:tasklet> <batch:chunk reader="xmlItemReader" writer="mongodbItemWriter" commit-interval="1"> </batch:chunk> </batch:tasklet> </batch:step> </batch:job> <bean id="mongodbItemWriter" class="org.springframework.batch.item.data.MongoItemWriter"> <property name="template" ref="mongoTemplate" /> <property name="collection" value="report" /> </bean> <bean id="xmlItemReader" class="org.springframework.batch.item.xml.StaxEventItemReader"> <property name="fragmentRootElementName" value="record" /> <property name="resource" value="classpath:xml/report.xml" /> <property name="unmarshaller" ref="reportUnmarshaller" /> </bean> <bean id="reportUnmarshaller" class="org.springframework.oxm.xstream.XStreamMarshaller"> <property name="aliases"> <util:map id="aliases"> <entry key="record" value="com.mkyong.model.Report" />  </util:map> </property> <property name="converters"> <array> <ref bean="reportConverter" /> </array> </property> </bean> <bean id="reportConverter" class="com.mkyong.converter.ReportConverter" /> </beans>

report.xml将

<?xml version="1.0" encoding="UTF-8" ?> <report> <record id="1"> <date>6/1/2013</date> <impression>139,237</impression> <clicks>40</clicks> <earning>220.90</earning> </record> <record id="2"> <date>6/2/2013</date> <impression>339,100</impression> <clicks>60</clicks> <earning>320.88</earning> </record> <record id="3"> <date>6/3/2013</date> <impression>431,436</impression> <clicks>76</clicks> <earning>270.80</earning> </record> <record id="4"> <date>3/12/2016</date> <impression>534,987</impression> <clicks>43</clicks> <earning>454.80</earning> </record> </report>

<强> mongodb.properties

mongo.host=127.0.0.1 mongo.port=27017 mongo.db=yourdb

运行Spring Batch Mongodb示例时出现问题

1 个答案: