- AutoMapper增加配置信息convertGenerate，配置是否生成转换的接口，可以控制不生成接口；

- 增加注解 ReverseAutoMapping，提升反向配置映射关系的功能
- AutoMapping target属性默认可以不填，不填则取当前字段

README.md

@@ -9,6 +9,7 @@ Mapstruct Plus 是对 Mapstruct 框架的一个增强，只做增强，不做修
 ## 链接
 
 - [Document](https://mapstruct.plus)
+- [Mapstruct](https://mapstruct.org)
 - [Gitee](https://gitee.com/linpeilie/mapstruct-plus)
 - [Github](https://github.com/linpeilie/mapstruct-plus)
 - [彻底干掉 BeanUtils，最优雅的 Mapstruct 增强工具全新出炉](https://juejin.cn/post/7204307381688909882)

example/pom.xml

@@ -18,7 +18,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <mapstruct.version>1.5.1.Final</mapstruct.version>
-        <mapstruct-plus.version>1.1.5</mapstruct-plus.version>
+        <mapstruct-plus.version>1.1.6</mapstruct-plus.version>
         <lombok.version>1.18.22</lombok.version>
     </properties>
 

example/spring-boot-3/pom.xml

@@ -12,8 +12,8 @@
     <artifactId>spring-boot-3</artifactId>
 
     <properties>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -55,8 +55,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>17</source>
-                    <target>17</target>
+                    <source>8</source>
+                    <target>8</target>
                     <annotationProcessorPaths>
                         <path>
                             <groupId>org.projectlombok</groupId>

example/spring-boot-with-lombok/src/main/java/io/github/linpeilie/StringToListStringConverter.java

@@ -9,4 +9,8 @@ public class StringToListStringConverter {
         return Arrays.asList(str.split(","));
     }
 
+    public static String listStringToString(List<String> list) {
+        return String.join(",", list);
+    }
+
 }

example/spring-boot-with-lombok/src/main/java/io/github/linpeilie/model/Order.java

@@ -0,0 +1,48 @@
+package io.github.linpeilie.model;
+
+import io.github.linpeilie.StringToListStringConverter;
+import io.github.linpeilie.annotations.AutoMapMapper;
+import io.github.linpeilie.annotations.AutoMapper;
+import io.github.linpeilie.annotations.AutoMappers;
+import io.github.linpeilie.annotations.AutoMapping;
+import io.github.linpeilie.annotations.ReverseAutoMapping;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.Date;
+import java.util.List;
+import lombok.Data;
+
+@Data
+@AutoMappers({
+    @AutoMapper(target = OrderEntity.class, reverseConvertGenerate = false),
+//    @AutoMapper(target = OrderVO.class)
+})
+public class Order {
+
+    private String orderId;
+
+    @AutoMapping(expression = "java(java.lang.String.join(\",\", source.getGoods()))")
+    private List<String> goods;
+
+    @AutoMapping(numberFormat = "$0.00")
+    private BigDecimal orderPrice;
+
+    @AutoMapping(numberFormat = "$0.00")
+    private Integer goodsNum;
+
+    @AutoMapping(dateFormat = "yyyy-MM-dd HH:mm:ss")
+    private LocalDateTime orderTime;
+
+    @AutoMapping(dateFormat = "yyyy_MM_dd HH:mm:ss")
+    private Date createTime;
+
+    @ReverseAutoMapping(target = "orderDate", dateFormat = "yyyy-MM-dd")
+    private String date;
+
+    @AutoMapping(source = "user.username")
+    private User user;
+
+    private Boolean payStatus;
+
+}

example/spring-boot-with-lombok/src/main/java/io/github/linpeilie/model/OrderEntity.java

@@ -0,0 +1,29 @@
+package io.github.linpeilie.model;
+
+import io.github.linpeilie.annotations.ReverseAutoMapping;
+import java.time.LocalDate;
+import lombok.Data;
+import org.json.JSONObject;
+
+@Data
+public class OrderEntity {
+
+    private String orderId;
+
+    private String goods;
+
+    private String orderPrice;
+
+    private String goodsNum;
+
+    private String orderTime;
+
+    private String createTime;
+
+    private LocalDate orderDate;
+
+    private String user;
+
+    private String payStatus;
+
+}

example/spring-boot-with-lombok/src/main/java/io/github/linpeilie/model/OrderVO.java

@@ -0,0 +1,41 @@
+package io.github.linpeilie.model;
+
+import io.github.linpeilie.StringToListStringConverter;
+import io.github.linpeilie.annotations.AutoMapMapper;
+import io.github.linpeilie.annotations.AutoMapper;
+import io.github.linpeilie.annotations.AutoMapping;
+import io.github.linpeilie.annotations.AutoMappings;
+import io.github.linpeilie.annotations.ReverseAutoMapping;
+import java.time.LocalDate;
+import lombok.Data;
+
+@Data
+@AutoMapper(target = Order.class, uses = StringToListStringConverter.class, convertGenerate = false)
+public class OrderVO {
+
+    private String orderId;
+
+    private String goods;
+
+    @ReverseAutoMapping(numberFormat = "$0.00")
+    private String orderPrice;
+
+    @ReverseAutoMapping(ignore = true)
+    private String goodsNum;
+
+    @ReverseAutoMapping(dateFormat = "yyyy-MM-dd HH:mm:ss")
+    private String orderTime;
+
+    @ReverseAutoMapping(dateFormat = "yyyy_MM_dd HHmmss")
+    private String createTime;
+
+    @ReverseAutoMapping(source = "date", dateFormat = "yyyy-MM-dd")
+    private LocalDate orderDate;
+
+    @ReverseAutoMapping(source = "user.username")
+    private String user;
+
+    @ReverseAutoMapping(defaultValue = "True")
+    private String payStatus;
+
+}

example/spring-boot-with-lombok/src/main/java/io/github/linpeilie/model/User.java

@@ -10,6 +10,7 @@ import lombok.Data;
 
 @Data
 @AutoMappers({
+    @AutoMapper(target = UserDto.class),
     @AutoMapper(target = UserDto.class),
     @AutoMapper(target = UserVO.class)
 })
@@ -24,15 +25,15 @@ public class User {
     private List<String> educationList;
 
     @AutoMappings({
-        @AutoMapping(targetClass = UserDto.class, target = "birthday", dateFormat = "yyyy-MM-dd HH:mm:ss"),
-        @AutoMapping(targetClass = UserVO.class, target = "birthday", ignore = true)
+        @AutoMapping(targetClass = UserDto.class, dateFormat = "yyyy-MM-dd HH:mm:ss"),
+        @AutoMapping(targetClass = UserVO.class, ignore = true)
     })
     private Date birthday;
 
-    @AutoMapping(targetClass = UserDto.class, target = "assets", numberFormat = "$0.00")
+    @AutoMapping(targetClass = UserDto.class, numberFormat = "$0.00")
     private double assets;
 
-    @AutoMapping(target = "money", numberFormat = "$0.00")
+    @AutoMapping(numberFormat = "$0.00")
     private double money;
 
     @AutoMappings({

example/spring-boot-with-lombok/src/test/java/io/github/linpeilie/QuickStartTest.java

@@ -1,18 +1,25 @@
 package io.github.linpeilie;
 
 import cn.hutool.core.date.DateUtil;
+import cn.hutool.core.lang.Assert;
 import io.github.linpeilie.model.Goods;
 import io.github.linpeilie.model.GoodsDto;
 import io.github.linpeilie.model.GoodsVo;
 import io.github.linpeilie.model.MapModelA;
+import io.github.linpeilie.model.Order;
+import io.github.linpeilie.model.OrderVO;
 import io.github.linpeilie.model.Sku;
 import io.github.linpeilie.model.SysMenu;
 import io.github.linpeilie.model.SysMenuVo;
 import io.github.linpeilie.model.User;
 import io.github.linpeilie.model.UserDto;
 import io.github.linpeilie.model.UserVO;
+import java.math.BigDecimal;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Date;
@@ -42,10 +49,10 @@ public class QuickStartTest {
         mapModel1.put("mapModelB", mapModel2);
 
         final MapModelA mapModelA = converter.convert(mapModel1, MapModelA.class);
-        System.out.println(mapModelA);  // MapModelA(str=1jkf1ijkj3f, i1=111, l2=11231, mapModelB=MapModelB(date=2023-02-23 01:03:23))
+        System.out.println(
+            mapModelA);  // MapModelA(str=1jkf1ijkj3f, i1=111, l2=11231, mapModelB=MapModelB(date=2023-02-23 01:03:23))
     }
 
-
     @Test
     public void ueseTest() {
         UserDto userDto = new UserDto();
@@ -167,4 +174,32 @@ public class QuickStartTest {
         System.out.println(goodsVo);
     }
 
+    @Test
+    public void reverseMappingTest() {
+        Order order = new Order();
+        order.setOrderId("394bcab38052404ab404c791cb975596");
+        order.setGoods(Arrays.asList("Apple", "Phone"));
+        order.setOrderPrice(BigDecimal.valueOf(123.3421));
+        order.setGoodsNum(32);
+        order.setOrderTime(LocalDateTime.of(2023, 1, 3, 12, 23, 1));
+        order.setCreateTime(DateUtil.parseDateTime("2023-01-03 11:06:01"));
+        order.setDate("2022-03-01");
+        User user = new User();
+        user.setUsername("Jack");
+        order.setUser(user);
+
+        OrderVO orderVO = converter.convert(order, OrderVO.class);
+        System.out.println(orderVO);
+
+        Assert.equals(orderVO.getOrderId(), "394bcab38052404ab404c791cb975596");
+        Assert.equals(orderVO.getGoods(), "Apple,Phone");
+        Assert.equals(orderVO.getOrderPrice(), "$123.34");
+        Assert.isNull(orderVO.getGoodsNum());
+        Assert.equals(orderVO.getOrderTime(), "2023-01-03 12:23:01");
+        Assert.equals(orderVO.getCreateTime(), "2023_01_03 110601");
+        Assert.equals(orderVO.getOrderDate(), LocalDate.parse("2022-03-01", DateTimeFormatter.ofPattern("yyyy-MM-dd")));
+        Assert.equals(orderVO.getUser(), "Jack");
+        Assert.equals(orderVO.getPayStatus(), "True");
+    }
+
 }

mapstruct-plus-processor/src/main/java/io/github/linpeilie/processor/AutoMapperProcessor.java

@@ -1,5 +1,7 @@
 package io.github.linpeilie.processor;
 
+import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.util.StrUtil;
 import com.squareup.javapoet.ClassName;
 import io.github.linpeilie.annotations.AutoMapMapper;
 import io.github.linpeilie.annotations.AutoMapper;
@@ -8,6 +10,8 @@ import io.github.linpeilie.annotations.AutoMapping;
 import io.github.linpeilie.annotations.AutoMappings;
 import io.github.linpeilie.annotations.ComponentModelConfig;
 import io.github.linpeilie.annotations.MapperConfig;
+import io.github.linpeilie.annotations.ReverseAutoMapping;
+import io.github.linpeilie.annotations.ReverseAutoMappings;
 import io.github.linpeilie.processor.generator.AutoMapperGenerator;
 import io.github.linpeilie.processor.generator.DefaultAdapterMapperGenerator;
 import io.github.linpeilie.processor.generator.MapperConfigGenerator;
@@ -43,6 +47,7 @@ import javax.lang.model.type.TypeMirror;
 import javax.tools.Diagnostic;
 import org.apache.commons.lang3.StringUtils;
 import org.mapstruct.MappingConstants;
+import org.mapstruct.ReportingPolicy;
 
 import static io.github.linpeilie.processor.Constants.AUTO_MAPPERS_ANNOTATION;
 import static io.github.linpeilie.processor.Constants.AUTO_MAPPER_ANNOTATION;
@@ -69,6 +74,8 @@ public class AutoMapperProcessor extends AbstractProcessor {
 
     private final List<AutoMapperMetadata> mapperList = new ArrayList<>();
 
+    private final Set<String> mapperSet = new HashSet<>();
+
     public AutoMapperProcessor() {
         this.mapperGenerator = new AutoMapperGenerator();
         this.mapperConfigGenerator = new MapperConfigGenerator();
@@ -216,19 +223,17 @@ public class AutoMapperProcessor extends AbstractProcessor {
     }
 
     private void generateMapper() {
-        final Set<String> mapperSet = new HashSet<>();
-
-        // 去重
-        mapperList.removeIf(mapper -> !mapperSet.add(mapper.mapperName()));
-
         List<AutoMapperMetadata> reverseMapperMetadataList = new ArrayList<>();
 
         mapperList.forEach(autoMapperMetadata -> {
             if (!autoMapperMetadata.isReverseConvertGenerate()) {
                 return;
             }
+            boolean defineReverseMapping = CollectionUtil.isNotEmpty(autoMapperMetadata.getFieldReverseMappingList());
             final AutoMapperMetadata reverseMapperMetadata = reverseMapper(autoMapperMetadata);
-            if (!mapperSet.add(reverseMapperMetadata.mapperName())) {
+            if (defineReverseMapping) {
+                addMapper(reverseMapperMetadata);
+            } else if (!mapperSet.add(reverseMapperMetadata.mapperName())) {
                 return;
             }
             reverseMapperMetadataList.add(reverseMapperMetadata);
@@ -237,6 +242,9 @@ public class AutoMapperProcessor extends AbstractProcessor {
         mapperList.addAll(reverseMapperMetadataList);
 
         mapperList.forEach(metadata -> {
+            if (!metadata.isConvertGenerate()) {
+                return;
+            }
             this.writeAutoMapperClassFile(metadata);
             addAdapterMethod(metadata.getSourceClassName(), metadata.getTargetClassName(), metadata.mapperClass());
         });
@@ -248,14 +256,15 @@ public class AutoMapperProcessor extends AbstractProcessor {
     }
 
     private AutoMapperMetadata reverseMapper(AutoMapperMetadata autoMapperMetadata) {
-        AutoMapperMetadata reverseMapperMetadata = new AutoMapperMetadata();
-        reverseMapperMetadata.setSourceClassName(autoMapperMetadata.getTargetClassName());
-        reverseMapperMetadata.setTargetClassName(autoMapperMetadata.getSourceClassName());
-        reverseMapperMetadata.setSuperClass(autoMapperMetadata.getSuperClass());
-        reverseMapperMetadata.setSuperGenerics(
-            new ClassName[] {reverseMapperMetadata.getSourceClassName(), reverseMapperMetadata.getTargetClassName()});
+        AutoMapperMetadata reverseMapperMetadata = initAutoMapperMetadata(
+            autoMapperMetadata.getTargetClassName(), autoMapperMetadata.getSourceClassName());
+        reverseMapperMetadata.setConvertGenerate(autoMapperMetadata.isReverseConvertGenerate());
+        reverseMapperMetadata.setUsesClassNameList(autoMapperMetadata.getUsesClassNameList());
         reverseMapperMetadata.setMapstructConfigClass(
             ClassName.get(AutoMapperProperties.getConfigPackage(), AutoMapperProperties.getConfigClassName()));
+        if (CollectionUtil.isNotEmpty(autoMapperMetadata.getFieldReverseMappingList())) {
+            reverseMapperMetadata.setFieldMappingList(autoMapperMetadata.getFieldReverseMappingList());
+        } else {
             // 需要继承的属性
             final List<AutoMappingMetadata> fieldMetadataList =
                 autoMapperMetadata.getFieldMappingList().stream().map(fieldMapping -> {
@@ -265,6 +274,7 @@ public class AutoMapperProcessor extends AbstractProcessor {
                     return autoMappingMetadata;
                 }).collect(Collectors.toList());
             reverseMapperMetadata.setFieldMappingList(fieldMetadataList);
+        }
         return reverseMapperMetadata;
     }
 
@@ -293,12 +303,32 @@ public class AutoMapperProcessor extends AbstractProcessor {
         mapMethodMap.put(adapterMapMethodMetadata.getMethodName(), adapterMapMethodMetadata);
     }
 
+    private AutoMapperMetadata initAutoMapperMetadata(ClassName source, ClassName target) {
+        AutoMapperMetadata metadata = new AutoMapperMetadata();
+
+        metadata.setSourceClassName(source);
+        metadata.setTargetClassName(target);
+        metadata.setSuperClass(ClassName.get("io.github.linpeilie", "BaseMapper"));
+        metadata.setSuperGenerics(new ClassName[] {source, target});
+        metadata.setMapstructConfigClass(
+            ClassName.get(AutoMapperProperties.getConfigPackage(), AutoMapperProperties.getConfigClassName()));
+        return metadata;
+    }
+
     private List<AutoMapperMetadata> buildAutoMapperMetadataByAutoMappers(final Element ele) {
         final AutoMappers autoMappers = ele.getAnnotation(AutoMappers.class);
         if (autoMappers == null) {
             return null;
         }
+        Set<String> targetClassNames = new HashSet<>();
         return Arrays.stream(autoMappers.value())
+            .filter(autoMapper -> {
+                ClassName className = transToClassName(autoMapper::target);
+                if (className == null) {
+                    return false;
+                }
+                return targetClassNames.add(className.reflectionName());
+            })
             .map(autoMapper -> buildAutoMapperMetadata(autoMapper, ele))
             .collect(Collectors.toList());
     }
@@ -311,6 +341,31 @@ public class AutoMapperProcessor extends AbstractProcessor {
         return buildAutoMapperMetadata(autoMapperAnnotation, ele);
     }
 
+    private boolean hasReverseAutoMapping(Element ele) {
+        TypeElement typeElement = (TypeElement) ele;
+        if (!typeElement.getKind().isClass()) {
+            return false;
+        }
+        return typeElement.getEnclosedElements()
+            .stream().anyMatch(e -> {
+                if (e.getKind() != ElementKind.FIELD) {
+                    return false;
+                }
+                return e.getAnnotation(ReverseAutoMapping.class) != null
+                       || e.getAnnotation(ReverseAutoMappings.class) != null;
+            });
+    }
+
+    private boolean isTargetFieldMapping(ClassName target, AutoMappingMetadata mappingMetadata) {
+        if (MAPPING_DEFAULT_TARGET.reflectionName().contentEquals(mappingMetadata.getTargetClass().reflectionName())) {
+            return true;
+        }
+        if (target.reflectionName().contentEquals(mappingMetadata.getTargetClass().reflectionName())) {
+            return true;
+        }
+        return false;
+    }
+
     private AutoMapperMetadata buildAutoMapperMetadata(final AutoMapper autoMapper, final Element ele) {
         ClassName source = ClassName.get((TypeElement) ele);
         ClassName target = transToClassName(autoMapper::target);
@@ -319,31 +374,85 @@ public class AutoMapperProcessor extends AbstractProcessor {
         }
         List<ClassName> uses = transToClassNameList(autoMapper::uses);
         List<AutoMappingMetadata> autoMappingMetadataList = buildFieldMappingMetadata((TypeElement) ele);
-        autoMappingMetadataList.removeIf(mappingMetadata -> {
-            if (MAPPING_DEFAULT_TARGET.reflectionName()
-                .contentEquals(mappingMetadata.getTargetClass().reflectionName())) {
-                return false;
-            }
-            if (target.reflectionName().contentEquals(mappingMetadata.getTargetClass().reflectionName())) {
-                return false;
-            }
-            return true;
-        });
+        autoMappingMetadataList.removeIf(mappingMetadata -> !isTargetFieldMapping(target, mappingMetadata));
 
-        AutoMapperMetadata metadata = new AutoMapperMetadata();
+        List<AutoMappingMetadata> reverseMappingMetadataList = buildFieldReverseMappingMetadata((TypeElement) ele);
+        reverseMappingMetadataList.removeIf(mappingMetadata -> !isTargetFieldMapping(target, mappingMetadata));
+
+        AutoMapperMetadata metadata = initAutoMapperMetadata(source, target);
 
-        metadata.setSourceClassName(source);
-        metadata.setTargetClassName(target);
         metadata.setUsesClassNameList(uses);
         metadata.setFieldMappingList(autoMappingMetadataList);
-        metadata.setSuperClass(ClassName.get("io.github.linpeilie", "BaseMapper"));
-        metadata.setSuperGenerics(new ClassName[] {source, target});
-        metadata.setMapstructConfigClass(
-            ClassName.get(AutoMapperProperties.getConfigPackage(), AutoMapperProperties.getConfigClassName()));
+        metadata.setFieldReverseMappingList(reverseMappingMetadataList);
+        metadata.setConvertGenerate(autoMapper.convertGenerate());
         metadata.setReverseConvertGenerate(autoMapper.reverseConvertGenerate());
+
+        addMapper(metadata);
+
         return metadata;
     }
 
+    private List<AutoMappingMetadata> buildFieldReverseMappingMetadata(final TypeElement ele) {
+        List<AutoMappingMetadata> list = new ArrayList<>();
+        if (!ele.getKind().isClass()) {
+            return list;
+        }
+        for (Element field : ele.getEnclosedElements()) {
+            if (field.getKind() != ElementKind.FIELD) {
+                continue;
+            }
+            ReverseAutoMapping reverseAutoMapping = field.getAnnotation(ReverseAutoMapping.class);
+            if (reverseAutoMapping != null) {
+                list.add(buildAutoMappingMetadata(reverseAutoMapping, field, ele));
+            }
+            ReverseAutoMappings reverseAutoMappings = field.getAnnotation(ReverseAutoMappings.class);
+            if (reverseAutoMappings != null) {
+                for (ReverseAutoMapping mapping : reverseAutoMappings.value()) {
+                    list.add(buildAutoMappingMetadata(mapping, field, ele));
+                }
+            }
+        }
+        list.removeIf(Objects::isNull);
+        return list;
+    }
+
+    private AutoMappingMetadata buildAutoMappingMetadata(ReverseAutoMapping reverseAutoMapping,
+                                                         Element ele,
+                                                         TypeElement type) {
+        ClassName targetClass = transToClassName(reverseAutoMapping::targetClass);
+        if (targetClass == null) {
+            return null;
+        }
+
+        AutoMappingMetadata metadata = new AutoMappingMetadata();
+        if (StrUtil.isNotEmpty(reverseAutoMapping.source())) {
+            metadata.setSource(reverseAutoMapping.source());
+        } else {
+            metadata.setSource(ele.getSimpleName().toString());
+        }
+        if (StrUtil.isNotEmpty(reverseAutoMapping.target())) {
+            metadata.setTarget(reverseAutoMapping.target());
+        } else {
+            metadata.setTarget(ele.getSimpleName().toString());
+        }
+        metadata.setTargetClass(targetClass);
+        metadata.setDefaultValue(reverseAutoMapping.defaultValue());
+        metadata.setIgnore(reverseAutoMapping.ignore());
+        metadata.setExpression(reverseAutoMapping.expression());
+        metadata.setDateFormat(reverseAutoMapping.dateFormat());
+        metadata.setNumberFormat(reverseAutoMapping.numberFormat());
+        return metadata;
+    }
+
+    private void addMapper(AutoMapperMetadata metadata) {
+        if (!mapperSet.add(metadata.mapperName())) {
+            throw new DuplicateMapperException("An exception occurred to generate " + metadata.mapperName()
+                                               + ", check the mapping configuration for "
+                                               + metadata.getSourceClassName().reflectionName()
+                                               + " or " + metadata.getTargetClassName().reflectionName());
+        }
+    }
+
     private List<AutoMappingMetadata> buildFieldMappingMetadata(final TypeElement autoMapperEle) {
         List<AutoMappingMetadata> list = new ArrayList<>();
 
@@ -378,13 +487,17 @@ public class AutoMapperProcessor extends AbstractProcessor {
         }
 
         AutoMappingMetadata metadata = new AutoMappingMetadata();
-        if (autoMapping.source() != null && !autoMapping.source().isEmpty()) {
+        if (StrUtil.isNotEmpty(autoMapping.source())) {
             metadata.setSource(autoMapping.source());
         } else {
             metadata.setSource(ele.getSimpleName().toString());
         }
-        metadata.setTargetClass(targetClass);
+        if (StrUtil.isNotEmpty(autoMapping.target())) {
             metadata.setTarget(autoMapping.target());
+        } else {
+            metadata.setTarget(ele.getSimpleName().toString());
+        }
+        metadata.setTargetClass(targetClass);
         metadata.setDefaultValue(autoMapping.defaultValue());
         metadata.setIgnore(autoMapping.ignore());
         metadata.setExpression(autoMapping.expression());

mapstruct-plus-processor/src/main/java/io/github/linpeilie/processor/DuplicateMapperException.java

@@ -0,0 +1,8 @@
+package io.github.linpeilie.processor;
+
+public class DuplicateMapperException extends RuntimeException {
+
+    public DuplicateMapperException(final String message) {
+        super(message);
+    }
+}

mapstruct-plus-processor/src/main/java/io/github/linpeilie/processor/generator/AutoMapperGenerator.java

@@ -23,6 +23,7 @@ import java.util.Optional;
 import java.util.stream.Collectors;
 import javax.lang.model.element.Modifier;
 import org.apache.commons.lang3.StringUtils;
+import org.mapstruct.ReportingPolicy;
 
 import static io.github.linpeilie.processor.Constants.*;
 
@@ -76,13 +77,16 @@ public class AutoMapperGenerator {
                 .addMember("target", CodeBlock.builder().add("$S", autoMappingMetadata.getTarget()).build())
                 .addMember("ignore", CodeBlock.builder().add(String.valueOf(autoMappingMetadata.isIgnore())).build());
             if (StrUtil.isNotEmpty(autoMappingMetadata.getDateFormat())) {
-                builder.addMember("dateFormat", CodeBlock.builder().add("$S", autoMappingMetadata.getDateFormat()).build());
+                builder.addMember("dateFormat",
+                    CodeBlock.builder().add("$S", autoMappingMetadata.getDateFormat()).build());
             }
             if (StrUtil.isNotEmpty(autoMappingMetadata.getNumberFormat())) {
-                builder.addMember("numberFormat", CodeBlock.builder().add("$S", autoMappingMetadata.getNumberFormat()).build());
+                builder.addMember("numberFormat",
+                    CodeBlock.builder().add("$S", autoMappingMetadata.getNumberFormat()).build());
             }
             if (StrUtil.isNotEmpty(autoMappingMetadata.getDefaultValue())) {
-                builder.addMember("defaultValue", CodeBlock.builder().add("$S", autoMappingMetadata.getDefaultValue()).build());
+                builder.addMember("defaultValue",
+                    CodeBlock.builder().add("$S", autoMappingMetadata.getDefaultValue()).build());
             }
             if (StringUtils.isNoneEmpty(autoMappingMetadata.getExpression())) {
                 builder.addMember("expression",

mapstruct-plus-processor/src/main/java/io/github/linpeilie/processor/metadata/AutoMapperMetadata.java

@@ -1,24 +1,28 @@
 package io.github.linpeilie.processor.metadata;
 
 import com.squareup.javapoet.ClassName;
+import io.github.linpeilie.processor.AutoMapperProperties;
 import java.util.List;
+import org.mapstruct.ReportingPolicy;
 
 public class AutoMapperMetadata extends AbstractMapperMetadata {
 
-
-
     private ClassName targetClassName;
 
     private List<ClassName> usesClassNameList;
 
     private List<AutoMappingMetadata> fieldMappingList;
 
+    private List<AutoMappingMetadata> fieldReverseMappingList;
+
     private ClassName superClass;
 
     private ClassName[] superGenerics;
 
     private ClassName mapstructConfigClass;
 
+    private boolean convertGenerate;
+
     private boolean reverseConvertGenerate;
 
     public String mapperName() {
@@ -83,4 +87,20 @@ public class AutoMapperMetadata extends AbstractMapperMetadata {
     public void setReverseConvertGenerate(final boolean reverseConvertGenerate) {
         this.reverseConvertGenerate = reverseConvertGenerate;
     }
+
+    public List<AutoMappingMetadata> getFieldReverseMappingList() {
+        return fieldReverseMappingList;
+    }
+
+    public void setFieldReverseMappingList(final List<AutoMappingMetadata> fieldReverseMappingList) {
+        this.fieldReverseMappingList = fieldReverseMappingList;
+    }
+
+    public boolean isConvertGenerate() {
+        return convertGenerate;
+    }
+
+    public void setConvertGenerate(final boolean convertGenerate) {
+        this.convertGenerate = convertGenerate;
+    }
 }

mapstruct-plus/src/main/java/io/github/linpeilie/annotations/AutoMapper.java

@@ -5,6 +5,9 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+/**
+ * @author linpl
+ */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.CLASS)
 public @interface AutoMapper {
@@ -13,11 +16,17 @@ public @interface AutoMapper {
 
     Class<?>[] uses() default {};
 
+    /**
+     * 是否生成转换的接口，当只想生成反向接口时，可以指定当前属性为 {@code false}
+     *
+     * @return {@code true} 生成类型转换的接口 {@code false} 不生成类型转换的接口
+     */
+    boolean convertGenerate() default true;
+
     /**
      * 是否生成反向转换的接口
      *
-     * @return true : 生成反向转换的接口
-     *         false : 不生成反向转换的接口
+     * @return true : 生成反向转换的接口 false : 不生成反向转换的接口
      */
     boolean reverseConvertGenerate() default true;
 

mapstruct-plus/src/main/java/io/github/linpeilie/annotations/AutoMapping.java

@@ -16,10 +16,11 @@ public @interface AutoMapping {
      * 来源，默认取当前字段名称
      * - 可以是当前类中的属性名
      * - 也可以是属性名.属性名，例如：address.city.name
+     * @return 当前类中的属性
      */
     String source() default "";
 
-    String target();
+    String target() default "";
 
     String dateFormat() default "";
 
@@ -31,6 +32,7 @@ public @interface AutoMapping {
 
     /**
      * 默认值
+     * @return 当源属性为null时，设置的默认值
      */
     String defaultValue() default "";
 

mapstruct-plus/src/main/java/io/github/linpeilie/annotations/MapperConfig.java

@@ -18,6 +18,7 @@ public @interface MapperConfig {
 
     /**
      * 所生成的 Mapper 接口的包
+     * @return Mapper 接口自动生成后的包名，如果为空，则默认生成在要转换的类同包下
      */
     String mapperPackage() default "";
 

mapstruct-plus/src/main/java/io/github/linpeilie/annotations/ReverseAutoMapping.java

@@ -0,0 +1,66 @@
+package io.github.linpeilie.annotations;
+
+import io.github.linpeilie.DefaultMapping;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * 由目标类生成当前类的配置
+ * <p>
+ * {@link AutoMapper} 的生成规则是由配置注解的当前类，生成与目标类之间的转换接口，所以其内部字段中的 {@link AutoMapping} 都是基于该条件来配置的。
+ * 虽然默认情况下会生成目标类到当前类的转换，但如果自定义配置的话，仍需要到目标类上面进行配置。
+ * </p>
+ * <p>
+ * 但现实情况中，可能会出现目标类，不能或者不建议增加配置注解，所以，这里提供一种在一种类上面自定义配置两个类转换的方式。 如果需要配置由目标类转换为配置注解的当前类具体转换逻辑的话，可以使用当前注解
+ * </p>
+ * <p>
+ * <strong>需要注意的是，如果在当前类中配置了该注解信息，则在目标类中不能够再定义与该类转换相关的注解，例如{@code AutoMapper}、{@code AutoMapping}</strong>
+ * </p>
+ *
+ * @author linpl
+ */
+@Target(ElementType.FIELD)
+@Retention(RetentionPolicy.CLASS)
+public @interface ReverseAutoMapping {
+
+    Class<?> targetClass() default DefaultMapping.class;
+
+    /**
+     * 来源，默认取当前字段名称
+     * <ul><li>可以是当前类中的属性名</li>
+     * <li>也可以是属性名.属性名，例如：address.city.name</li></ul>
+     * <strong>这里的来源，指的是目标类中的字段信息</strong>
+     *
+     * @return 目标类中的属性
+     */
+    String source() default "";
+
+    /**
+     * 目标属性，默认取当前字段名称
+     * <ul>
+     *     <li>可以是当前类中的属性名</li>
+     *     <li>也可以是属性名.属性名，例如：address.city.name</li>
+     * </ul>
+     *
+     * @return 当前类中的属性
+     */
+    String target() default "";
+
+    String dateFormat() default "";
+
+    String numberFormat() default "";
+
+    String expression() default "";
+
+    boolean ignore() default false;
+
+    /**
+     * 默认值
+     *
+     * @return 当来源属性为null时，所设置的默认值
+     */
+    String defaultValue() default "";
+
+}

mapstruct-plus/src/main/java/io/github/linpeilie/annotations/ReverseAutoMappings.java

@@ -0,0 +1,14 @@
+package io.github.linpeilie.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.FIELD)
+@Retention(RetentionPolicy.CLASS)
+public @interface ReverseAutoMappings {
+
+    ReverseAutoMapping[] value();
+
+}

mapstruct-plus/src/main/java/io/github/linpeilie/map/MapObjectConvert.java

@@ -38,10 +38,6 @@ public class MapObjectConvert {
         return Convert.toDouble(obj);
     }
 
-    public static Number objToNumber(Object obj) {
-        return Convert.toNumber(obj);
-    }
-
     public static Boolean objToBoolean(Object obj) {
         return Convert.toBool(obj);
     }

pom.xml

@@ -9,7 +9,7 @@
     <packaging>pom</packaging>
     <version>${mapstruct-plus.version}</version>
     <name>Mapstruct Plus</name>
-    <description>mapstruct增加工具包</description>
+    <description>mapstruct增强工具包</description>
     <modules>
         <module>mapstruct-plus</module>
         <module>mapstruct-plus-spring-boot-starter</module>
@@ -17,11 +17,11 @@
     </modules>
 
     <properties>
-        <mapstruct-plus.version>1.1.5</mapstruct-plus.version>
+        <mapstruct-plus.version>1.1.6</mapstruct-plus.version>
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <mapstruct.version>1.5.1.Final</mapstruct.version>
+        <mapstruct.version>1.5.3.Final</mapstruct.version>
         <hutool.version>5.8.9</hutool.version>
         <projectUrl>https://github.com/linpeilie/mapstruct-plus.git</projectUrl>
     </properties>