springbatch5.0.2中如何获取job中incremeter中的参数值
时间: 2024-02-13 22:04:55 浏览: 155
在Spring Batch 5.0.2中,可以通过JobExecution对象获取Job中所有的参数值,包括Incremeter中的参数。具体可以通过以下步骤实现:
1. 在Incremeter中定义需要获取的参数,例如:
```
public class MyIncremeter implements JobExecutionListener, StepExecutionListener {
private String myParam;
public void setMyParam(String myParam) {
this.myParam = myParam;
}
//...
}
```
2. 在Job配置文件中,通过<job:incrementer>标签为Incremeter设置参数,例如:
```
<job id="myJob" incrementer="myIncremeter">
<step id="myStep" >
<!-- ... -->
</step>
</job>
<bean id="myIncremeter" class="com.example.MyIncremeter">
<property name="myParam" value="#{jobParameters['myParam']}"/>
</bean>
```
3. 在Job执行时,可以通过JobExecution对象获取Incremeter中的参数值,例如:
```
@Autowired
private JobLauncher jobLauncher;
@Autowired
private Job myJob;
public void runJob(String myParam) throws Exception {
JobParameters jobParameters = new JobParametersBuilder()
.addString("myParam", myParam)
.toJobParameters();
JobExecution jobExecution = jobLauncher.run(myJob, jobParameters);
String myIncremeterParam = jobExecution.getExecutionContext().getString("myParam");
}
```
其中,通过JobExecution.getExecutionContext()方法获取Job执行上下文,通过getString()方法获取Incremeter中设置的参数值。
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