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示例代码：

import java.util.*;
import java.util.stream.Collectors;// 假设的 EfloTypeTVo 类
class EfloTypeTVo {private String lxLeofType;private String lxEploType;private String descr;public EfloTypeTVo(String lxLeofType, String lxEploType, String descr) {this.lxLeofType = lxLeofType;this.lxEploType = lxEploType;this.descr = descr;}public String getLxLeofType() {return lxLeofType;}public String getLxEploType() {return lxEploType;}public String getDescr() {return descr;}
}public class Main {public static void main(String[] args) {// 模拟数据List<EfloTypeTVo> data = Arrays.asList(new EfloTypeTVo("type1", "reason1", "description1"),new EfloTypeTVo("type1", "reason2", "description2"),new EfloTypeTVo("type2", "reason3", "description3"));// 合成代码Map<String, Map<String, String>> result = data.stream().collect(Collectors.groupingBy(EfloTypeTVo::getLxLeofType,Collectors.toMap(EfloTypeTVo::getLxEploType,EfloTypeTVo::getDescr,(k1, k2) -> k1)));// 输出结果System.out.println(result);}
}