xkbeancomparator是一个java bean对比修改并输出差异的工具。

xkbeancomparator is a Java bean contrast modification and outputs the difference.

0.依赖 dependency：

com.github.xkzhangsan

xkbeancomparator

0.0.3

1.常见用处 Common use：

(1)对修改过的对象进行对比生成修改日志The modified objects are compared to generate a change log

；

(2)对比部分字段修改，根据字段注释输出日志Compare partial field modifications and output the log based on field comments

。

2.主要功能类和用法 Main function classes and usage：

主要类名称 Class：BeanComparator.java

主要方法为 Method ：

public static String compareBean(Object source, Object target)

public static CompareResult getCompareResult(Object source, Object target)

(1)添加pom依赖

com.github.xkzhangsan

xkbeancomparator

0.0.2

(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 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！issue