标签:final int content 地址 ati amp prope 对比 imp
xkbeancomparator 是一个 java bean 对比修改并输出差异的工具。github地址
适用场景:用户编辑提交时,需要记录修改内容,修改前后的值对比,生成操作记录;可以选择记录的字段和字段说明,自定义操作记录。
特点:
jdk 1.7+
不依赖第三方jar,大小非常小
使用反射,调用get方法对比字段值。
(1)添加pom依赖
<dependency>
<groupId>com.github.xkzhangsan</groupId>
<artifactId>xkbeancomparator</artifactId>
<version>0.0.1</version>
</dependency>
(2)java bean类 User
import java.math.BigDecimal; public class User { Integer id; String name; private BigDecimal point; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public BigDecimal getPoint() { return point; } public void setPoint(BigDecimal point) { this.point = point; } }
(3)增加辅助日志类 UserLog
import java.util.HashMap;
import java.util.Map;
import com.xkzhangsan.xkbeancomparator.BeanComparator;
import com.xkzhangsan.xkbeancomparator.CompareResult;
public class UserLog{
private static final Map<String, String> propertyTranslationMap = new HashMap<>();
static {
propertyTranslationMap.put("name", "用户名");
propertyTranslationMap.put("point", "积分");
}
public static CompareResult getCompareResult(Object source, Object target){
return BeanComparator.getCompareResult(source, target, propertyTranslationMap);
}
}
(4) 使用
@Test
public void test1() {
User u1 = new User();
u1.setId(1);
u1.setName("aa");
u1.setPoint(new BigDecimal("111111111111.12"));
User u2 = new User();
u2.setId(1);
u2.setName("aa2");
u2.setPoint(new BigDecimal("111111111111.15"));
CompareResult compareResult = UserLog.getCompareResult(u1, u2);
if (compareResult.isChanged()) {
System.out.println(compareResult.getChangeContent());
}
}
(5)输出结果
用户名:aa->aa2,积分:111111111111.12->111111111111.15,
(6)说明 instructions
上面是推荐用法,使用辅助日志类能统一维护一个java bean的注释map,简化调用。 The recommended usage, above, is to use secondary logging classes to uniformly maintain an annotated map of a Java bean, simplifying invocation.
欢迎提建议 Suggestions are welcome!
使用xkbeancomparator对比javabean,生成操作记录
标签:final int content 地址 ati amp prope 对比 imp
原文地址:https://www.cnblogs.com/xkzhangsanx/p/11762063.html