Spring-要建模的列表形式的批量ItemProcessor数据

import org.springframework.batch.item.ItemProcessor;

public class UppercaseItemProcessor implements ItemProcessor<String, String> {

    @Override
    public String process(String item) throws Exception {
        return item.toUpperCase();
    }
}

import org.springframework.batch.item.ItemProcessor;

public class ComplexItemProcessor implements ItemProcessor<String, String> {

    private final ItemProcessor<String, String> processor1;
    private final ItemProcessor<String, String> processor2;

    public ComplexItemProcessor(ItemProcessor<String, String> processor1, ItemProcessor<String, String> processor2) {
        this.processor1 = processor1;
        this.processor2 = processor2;
    }

    @Override
    public String process(String item) throws Exception {
        String processedByProcessor1 = processor1.process(item);
        return processor2.process(processedByProcessor1);
    }
}

import org.springframework.batch.item.ItemProcessor;

public class RobustItemProcessor implements ItemProcessor<String, String> {

    @Override
    public String process(String item) throws Exception {
        try {
            // 复杂的处理逻辑
            return item.toUpperCase();
        } catch (Exception e) {
            // 异常处理逻辑
            return null; // 或者记录日志并抛出自定义异常
        }
    }
}