DB 列名称与 CSV 标题名称不同

Question

我有一个 CSV 文件，其中 CSV 标头和数据库域对象名称不同。如何在 Spring Batch 中获取 CSV 数据并创建模型以持久化到数据库中？

示例，employee.csv

Employee Id, Employee Name, Employee Address, Employee Address 2, Date Of Birth

域对象Employee.java

public string empId;   
public string empName;   
public string empAddress;   
public string empAddress2;   
public string empDOB;

在平面文件阅读器上抛出错误

import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.StepExecution;
import org.springframework.batch.core.StepExecutionListener;
import org.springframework.batch.core.configuration.annotation.JobScope;
import org.springframework.batch.core.configuration.annotation.StepScope;
import org.springframework.batch.item.file.FlatFileItemReader;
import org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper;
import org.springframework.batch.item.file.mapping.DefaultLineMapper;
import org.springframework.batch.item.file.mapping.FieldSetMapper;
import org.springframework.core.io.FileSystemResource;
import org.springframework.stereotype.Component;
import org.springframework.validation.BindException;
import org.springframework.batch.item.file.transform.DelimitedLineTokenizer;
import org.springframework.batch.item.file.transform.FieldSet;

@Component
@JobScope
public class EmployeeFlatFileItemReader extends FlatFileItemReader<Employee> implements StepExecutionListener {

private String fileName;
private String filePath;

@Override
public void beforeStep(StepExecution stepExecution) {
    fileName = (String) stepExecution.getJobExecution().getJobParameters().getString("fileName");  
    filePath = (String) stepExecution.getJobExecution().getJobParameters().getString("filePath");  
    setResource(new FileSystemResource(filePath));  
}

public EmployeeFlatFileItemReader() {
    try {
        //init();
        DefaultLineMapper<Employee> lineMapper = new DefaultLineMapper<Employee>() {
            {
                setLineTokenizer(new DelimitedLineTokenizer() {
                    {
                        setNames("Employee Id" + "," + "Employee Name" + "," + "Employee Address" + "," + "Employee Address 2" + "," + "Date Of Birth");
                    }
                });
                setFieldSetMapper(new BeanWrapperFieldSetMapper<Employee>() {
                    {
                        setTargetType(Employee.class); // Throws error
                    }
                });
            }
        };
        setLineMapper(lineMapper);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

@Override
public ExitStatus afterStep(StepExecution stepExecution) {
    return stepExecution.getExitStatus();
}

}