springboot集成dozer

dozer介绍

dozer用于对象之间属性的复制,避免复杂的get/set方法

如何使用

添加依赖

<dependency>
    <groupId>com.github.dozermapper</groupId>
    <artifactId>dozer-spring-boot-starter</artifactId>
    <version>6.5.0</version>
</dependency>

配置

dozer默认存在隐性映射,相同属性名将自动进行映射,如果属性名不相同需要通过注解/xml进行自定义配置.

注解

class Demo{
    @Mapping("address")
    private String addr;
}

如果项目中对象映射很复杂,或者存在一对多映射关系,此方式不适用,因此不建议.

xml

xml路径和文件名称可自定义

<?xml version="1.0" encoding="UTF-8"?>
<mappings xmlns="http://dozermapper.github.io/schema/bean-mapping"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://dozermapper.github.io/schema/bean-mapping http://dozermapper.github.io/schema/bean-mapping.xsd">

    <!--全局配置，配置日期的映射格式-->
    <configuration>
        <date-format>yyyy-MM-dd HH:mm:ss</date-format>
    </configuration>
    <!--wildcard 默认为true,自动对对象中每一个属性进行映射(含隐式);若为false,只会对显式映射的属性进行复制-->
    <mapping wildcard="true">
        <class-a>com.huang.dozer.bean.User</class-a>
        <class-b>com.huang.dozer.bean.UserXmlDestinationObject</class-b>
        <field>
            <a>name</a>
            <b>username</b>
        </field>
        <field>
            <a>birthday</a>
            <b>dateOfBirth</b>
        </field>
    </mapping>
</mappings>

初始化

@Configuration//注意此类需要被扫描到
public class DozerConfig {
    @Bean//resources需要包含上述xml
    public DozerBeanMapperFactoryBean dozerMapper(@Value("classpath:dozer/*.xml") Resource[] resources) throws IOException {
        DozerBeanMapperFactoryBean dozerBeanMapperFactoryBean = new DozerBeanMapperFactoryBean();
        dozerBeanMapperFactoryBean.setMappingFiles(resources);
        return dozerBeanMapperFactoryBean;
    }
}

将dozer mapper加入到spring容器管理

使用

public class Demo{
  @Autowired
  private Mapper mapper;

  public void test{
    SysUser sysUser = new SysUser();
    sysUser.setUsername("demo");
    SysUserInfoDto sysUserInfoDto = mapper.map(sysUser, SysUserInfoDto.class);
  }
}