锲而舍之，朽木不折；锲而不舍，金石可镂。——荀子
这还是个实验性功能，首先引入：
代码语言：javascript复制<dependency>
<groupId>org.dromara.stream-query</groupId>
<artifactId>stream-plugin-mybatis-plus</artifactId>
<version>2.1.0-alpha</version>
</dependency>然后对应的单元测试：
代码语言：javascript复制/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.dromara.streamquery.stream.core.bean;
import lombok.Data;
import lombok.experimental.Accessors;
import lombok.val;
import org.junit.jupiter.api.Test;
import java.io.Serializable;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;
import java.util.UUID;
import static org.junit.jupiter.api.Assertions.*;
/**
* BeanHelperTest
*
* @author VampireAchao
* @since 2023/3/15
*/
class BeanHelperTest {
@Test
void testGetSetterName() {
assertEquals("setName", BeanHelper.getSetterName("name"));
assertEquals("setLambda", BeanHelper.getSetterName("lambda"));
}
@Test
void testGetGetterName() {
assertEquals("getName", BeanHelper.getGetterName("name"));
assertEquals("getLambda", BeanHelper.getGetterName("lambda"));
}
@Data
public static class User {
private String name;
}
@Data
@Accessors(chain = true)
public static class Person {
private String name;
}
@Data
public static class Artist implements Serializable {
private static final long serialVersionUID = 1L;
private String name;
}
@Test
void testCopyProperties() {
User source =
new User() {
{
setName("test");
}
};
Person person = BeanHelper.copyProperties(source, Person.class);
assertEquals(source.getName(), person.getName());
Artist artist =
new Artist() {
private static final long serialVersionUID = 6276191330280044345L;
{
setName("test");
}
};
User user = BeanHelper.copyProperties(source, User.class);
assertEquals(artist.getName(), user.getName());
}
@Data
public static class EntityWithStringId {
private String id;
}
@Data
public static class EntityWithIntegerId {
private Integer id;
}
@Test
void testCopyPropertiesWithConverter() {
val source = new EntityWithStringId();
source.setId("1");
EntityWithIntegerId target = BeanHelper.copyProperties(source, EntityWithIntegerId.class);
assertEquals(source.getId(), target.getId().toString());
assertEquals(
source.getId(), BeanHelper.copyProperties(target, EntityWithStringId.class).getId());
assertEquals(
target.getId(),
BeanHelper.copyProperties(
source,
EntityWithIntegerId.class,
new CopyOption().addConverter(String.class, Integer.class, Integer::new))
.getId());
assertEquals(
target.getId(),
BeanHelper.copyProperties(
source,
EntityWithIntegerId.class,
new CopyOption()
.addConverter(
EntityWithStringId.class,
EntityWithIntegerId.class,
s -> {
val t = new EntityWithIntegerId();
t.setId(Integer.valueOf(s.getId()));
return t;
}))
.getId());
assertNull(BeanHelper.copyProperties(null, Object.class));
assertEquals("1", BeanHelper.copyProperties(1, String.class));
assertEquals(Integer.valueOf(1), BeanHelper.copyProperties(1L, Integer.class));
assertEquals(Integer.valueOf(1), BeanHelper.copyProperties("1", Integer.class));
assertEquals(Long.valueOf(1L), BeanHelper.copyProperties("1", Long.class));
assertEquals(Long.valueOf(1L), BeanHelper.copyProperties(1, Long.class));
assertEquals(Float.valueOf(1.0f), BeanHelper.copyProperties(1.0, Float.class));
assertEquals(Double.valueOf(1.0), BeanHelper.copyProperties("1.0", Double.class));
assertEquals(Float.valueOf(1.0f), BeanHelper.copyProperties("1.0", Float.class));
assertEquals(Double.valueOf(1.0), BeanHelper.copyProperties(1.0f, Double.class));
assertEquals(Double.valueOf(1.0), BeanHelper.copyProperties(1, Double.class));
assertEquals(Float.valueOf(1.0f), BeanHelper.copyProperties(1, Float.class));
assertEquals(Float.valueOf(1.0f), BeanHelper.copyProperties(1L, Float.class));
assertEquals(Double.valueOf(1.0), BeanHelper.copyProperties(1L, Double.class));
assertEquals(Boolean.TRUE, BeanHelper.copyProperties("true", Boolean.class));
Date now = new Date();
assertEquals(now.getTime(), BeanHelper.copyProperties(now, Long.class));
assertEquals(new Date(now.getTime()), BeanHelper.copyProperties(now.getTime(), Date.class));
UUID uuid = UUID.randomUUID();
assertEquals(uuid, BeanHelper.copyProperties(uuid.toString(), UUID.class));
LocalDateTime ldt = LocalDateTime.now();
assertEquals(
Date.from(ldt.atZone(ZoneId.systemDefault()).toInstant()),
BeanHelper.copyProperties(ldt, Date.class));
LocalDate ld = LocalDate.now();
assertEquals(
Date.from(ld.atStartOfDay(ZoneId.systemDefault()).toInstant()),
BeanHelper.copyProperties(ld, Date.class));
assertEquals(ld, BeanHelper.copyProperties(ldt, LocalDate.class));
assertEquals(ld.atStartOfDay(), BeanHelper.copyProperties(ld, LocalDateTime.class));
}
@Test
void testIgnoreError() {
val source = new EntityWithStringId();
source.setId("1");
assertThrows(
ConvertFailException.class,
() -> BeanHelper.copyProperties(source, EntityWithIntegerId.class, new CopyOption()));
assertDoesNotThrow(
() ->
BeanHelper.copyProperties(
source, EntityWithIntegerId.class, new CopyOption().setIgnoreError(true)));
}
}这里可以自定义Converter，此处new CopyOption()是不带默认内置的Converter的，但是CopyOption.of()是带的
