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!590 [新特性] CopyOptions支持以Lambda方式设置忽略属性列表

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Merge pull request !590 from celee/v5-dev
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Looly 2022-04-06 01:23:58 +00:00 committed by Gitee
commit 04612516d4
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2 changed files with 49 additions and 0 deletions
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33
hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
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@ -1,13 +1,19 @@
package cn.hutool.core.bean.copier;
import cn.hutool.core.lang.Editor;
import cn.hutool.core.lang.func.Func1;
import cn.hutool.core.lang.func.LambdaUtil;
import cn.hutool.core.util.ArrayUtil;
import java.io.Serializable;
import java.lang.reflect.Field;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.function.BiFunction;
import java.util.function.BiPredicate;
import java.util.stream.Collectors;
/**
* 属性拷贝选项<br>
@ -158,6 +164,33 @@ public class CopyOptions implements Serializable {
return setPropertiesFilter((field, o) -> false == ArrayUtil.contains(ignoreProperties, field.getName()));
}
/**
* 设置忽略的目标对象中属性列表，设置一个属性列表，不拷贝这些属性值，Lambda方式
*
* @param func1 忽略的目标对象中属性列表，设置一个属性列表，不拷贝这些属性值
* @return CopyOptions
*/
public <P, R> CopyOptions setIgnoreProperties(Func1<P, R>... func1) {
List<String> ignoreProperties = Arrays.asList(func1)
.stream()
.map(t -> {
String name = LambdaUtil.getMethodName(t);
if (name.startsWith("is")) {
name = name.substring(2);
} else if (name.startsWith("get") || name.startsWith("set")) {
name = name.substring(3);
} else {
throw new RuntimeException("Error parsing property name '" + name + "'. Didn't start with 'is', 'get' or 'set'.");
}
if (name.length() == 1 || (name.length() > 1 && !Character.isUpperCase(name.charAt(1)))) {
name = name.substring(0, 1).toLowerCase(Locale.ENGLISH) + name.substring(1);
}
return name;
})
.collect(Collectors.toList());
return setPropertiesFilter((field, o) -> false == ignoreProperties.contains(field.getName()));
}
/**
* 设置是否忽略字段的注入错误
*

16
hutool-core/src/test/java/cn/hutool/core/bean/BeanUtilTest.java
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@ -562,6 +562,22 @@ public class BeanUtilTest {
Assert.assertNull(newFood.getCode());
}
@Test
public void copyBeanPropertiesFunctionFilterTest() {
Person o = new Person();
o.setName("asd");
o.setAge(123);
o.setOpenid("asd");
CopyOptions copyOptions = CopyOptions.create().setIgnoreProperties(Person::getAge,Person::getOpenid);
Person n = new Person();
BeanUtil.copyProperties(o, n, copyOptions);
// 是否忽略拷贝属性
Assert.assertNotEquals(o.getAge(),n.getAge());
Assert.assertNotEquals(o.getOpenid(),n.getOpenid());
}
@Data
public static class Food {
@Alias("bookId")