java - 如何使用 BeanUtils.copyProperties？-6ren

java - 如何使用 BeanUtils.copyProperties？

转载作者：太空狗更新时间：2023-10-29 22:59:01

我正在尝试将属性从一个 bean 复制到另一个。下面是两个 bean 的签名:

搜索内容:

public class SearchContent implements Serializable {

    private static final long serialVersionUID = -4500094586165758427L;

    private Integer id;
    private String docName;
    private String docType;
    private String docTitle;
    private String docAuthor;
    private String securityGroup;
    private String docAccount;
    private Integer revLabel;

    private String profile;
    private LabelValueBean<String> workflowStage;

    private Date createDate;
    private Date inDate;

    private String originalName;
    private String format;
    private String extension;
    private Long fileSize;

    private String author;

    private LabelValueBean<String> entity;
    private LabelValueBean<String> brand;
    private LabelValueBean<String> product;
    private LabelValueBean<String> collection;
    private LabelValueBean<String> subCollection;

    private String description;
    private LabelValueBean<String> program;
    private String vintage;
    private String model;
    private String restrictedZone;
    private LabelValueBean<String> event;
    private LabelValueBean<String> language;
    private String geographicLocation;
    private String watermark;
    private Integer pageNumber;
    private String summary;
    private String agentName;
    private String commissionedByName;
    private String commissionedByDepartment;
    private LabelValueBean<Integer> bestOf;
    private String mediaLocation;

    private LabelValueBean<Integer> fullRights;
    private LabelValueBean<String> mediaUsage;
    private Date rightsEndDate;
    private String geographicRights;
    private LabelValueBean<Integer> evinConformity;
    private String contactReference;
    private LabelValueBean<String> publicationScope;
    private String rightsComment;

    /**
     * Constructor SearchContent
     * @author TapasB
     * @since 15-Oct-2013 - 5:45:55 pm
     * @version DAM 1.0
     */
    public SearchContent() {

    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getDocName() {
        return docName;
    }

    public void setDocName(String docName) {
        this.docName = docName;
    }

    public String getDocType() {
        return docType;
    }

    public void setDocType(String docType) {
        this.docType = docType;
    }

    public String getDocTitle() {
        return docTitle;
    }

    public void setDocTitle(String docTitle) {
        this.docTitle = docTitle;
    }

    public String getDocAuthor() {
        return docAuthor;
    }

    public void setDocAuthor(String docAuthor) {
        this.docAuthor = docAuthor;
    }

    public String getSecurityGroup() {
        return securityGroup;
    }

    public void setSecurityGroup(String securityGroup) {
        this.securityGroup = securityGroup;
    }

    public String getDocAccount() {
        return docAccount;
    }

    public void setDocAccount(String docAccount) {
        this.docAccount = docAccount;
    }

    public Integer getRevLabel() {
        return revLabel;
    }

    public void setRevLabel(Integer revLabel) {
        this.revLabel = revLabel;
    }

    public String getProfile() {
        return profile;
    }

    public void setProfile(String profile) {
        this.profile = profile;
    }

    public LabelValueBean<String> getWorkflowStage() {
        return workflowStage;
    }

    public void setWorkflowStage(LabelValueBean<String> workflowStage) {
        this.workflowStage = workflowStage;
    }

    public Date getCreateDate() {
        return createDate;
    }

    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }

    public Date getInDate() {
        return inDate;
    }

    public void setInDate(Date inDate) {
        this.inDate = inDate;
    }

    public String getOriginalName() {
        return originalName;
    }

    public void setOriginalName(String originalName) {
        this.originalName = originalName;
    }

    public String getFormat() {
        return format;
    }

    public void setFormat(String format) {
        this.format = format;
    }

    public String getExtension() {
        return extension;
    }

    public void setExtension(String extension) {
        this.extension = extension;
    }

    public Long getFileSize() {
        return fileSize;
    }

    public void setFileSize(Long fileSize) {
        this.fileSize = fileSize;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public LabelValueBean<String> getEntity() {
        return entity;
    }

    public void setEntity(LabelValueBean<String> entity) {
        this.entity = entity;
    }

    public LabelValueBean<String> getBrand() {
        return brand;
    }

    public void setBrand(LabelValueBean<String> brand) {
        this.brand = brand;
    }

    public LabelValueBean<String> getProduct() {
        return product;
    }

    public void setProduct(LabelValueBean<String> product) {
        this.product = product;
    }

    public LabelValueBean<String> getCollection() {
        return collection;
    }

    public void setCollection(LabelValueBean<String> collection) {
        this.collection = collection;
    }

    public LabelValueBean<String> getSubCollection() {
        return subCollection;
    }

    public void setSubCollection(LabelValueBean<String> subCollection) {
        this.subCollection = subCollection;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public LabelValueBean<String> getProgram() {
        return program;
    }

    public void setProgram(LabelValueBean<String> program) {
        this.program = program;
    }

    public String getVintage() {
        return vintage;
    }

    public void setVintage(String vintage) {
        this.vintage = vintage;
    }

    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public String getRestrictedZone() {
        return restrictedZone;
    }

    public void setRestrictedZone(String restrictedZone) {
        this.restrictedZone = restrictedZone;
    }

    public LabelValueBean<String> getEvent() {
        return event;
    }

    public void setEvent(LabelValueBean<String> event) {
        this.event = event;
    }

    public LabelValueBean<String> getLanguage() {
        return language;
    }

    public void setLanguage(LabelValueBean<String> language) {
        this.language = language;
    }

    public String getGeographicLocation() {
        return geographicLocation;
    }

    public void setGeographicLocation(String geographicLocation) {
        this.geographicLocation = geographicLocation;
    }

    public String getWatermark() {
        return watermark;
    }

    public void setWatermark(String watermark) {
        this.watermark = watermark;
    }

    public Integer getPageNumber() {
        return pageNumber;
    }

    public void setPageNumber(Integer pageNumber) {
        this.pageNumber = pageNumber;
    }

    public String getSummary() {
        return summary;
    }

    public void setSummary(String summary) {
        this.summary = summary;
    }

    public String getAgentName() {
        return agentName;
    }

    public void setAgentName(String agentName) {
        this.agentName = agentName;
    }

    public String getCommissionedByName() {
        return commissionedByName;
    }

    public void setCommissionedByName(String commissionedByName) {
        this.commissionedByName = commissionedByName;
    }

    public String getCommissionedByDepartment() {
        return commissionedByDepartment;
    }

    public void setCommissionedByDepartment(String commissionedByDepartment) {
        this.commissionedByDepartment = commissionedByDepartment;
    }

    public LabelValueBean<Integer> getBestOf() {
        return bestOf;
    }

    public void setBestOf(LabelValueBean<Integer> bestOf) {
        this.bestOf = bestOf;
    }

    public String getMediaLocation() {
        return mediaLocation;
    }

    public void setMediaLocation(String mediaLocation) {
        this.mediaLocation = mediaLocation;
    }

    public LabelValueBean<Integer> getFullRights() {
        return fullRights;
    }

    public void setFullRights(LabelValueBean<Integer> fullRights) {
        this.fullRights = fullRights;
    }

    public LabelValueBean<String> getMediaUsage() {
        return mediaUsage;
    }

    public void setMediaUsage(LabelValueBean<String> mediaUsage) {
        this.mediaUsage = mediaUsage;
    }

    public Date getRightsEndDate() {
        return rightsEndDate;
    }

    public void setRightsEndDate(Date rightsEndDate) {
        this.rightsEndDate = rightsEndDate;
    }

    public String getGeographicRights() {
        return geographicRights;
    }

    public void setGeographicRights(String geographicRights) {
        this.geographicRights = geographicRights;
    }

    public LabelValueBean<Integer> getEvinConformity() {
        return evinConformity;
    }

    public void setEvinConformity(LabelValueBean<Integer> evinConformity) {
        this.evinConformity = evinConformity;
    }

    public String getContactReference() {
        return contactReference;
    }

    public void setContactReference(String contactReference) {
        this.contactReference = contactReference;
    }

    public LabelValueBean<String> getPublicationScope() {
        return publicationScope;
    }

    public void setPublicationScope(LabelValueBean<String> publicationScope) {
        this.publicationScope = publicationScope;
    }

    public String getRightsComment() {
        return rightsComment;
    }

    public void setRightsComment(String rightsComment) {
        this.rightsComment = rightsComment;
    }
}

和内容:

public class Content implements Serializable {

    private static final long serialVersionUID = 2999449587418137835L;

    private Boolean selected;
    private Boolean renditionInfoFetched;

    private String searchPageImageRendition;
    private String detailPageImageRendition;

    private String videoRendition;

    private Integer id;
    private String docName;
    private String docType;
    private String docTitle;
    private String docAuthor;
    private String securityGroup;
    private String docAccount;
    private Integer revLabel;
    private String profile;

    private Date createDate;
    private Date inDate;

    private String originalName;
    private String format;
    private String extension;
    private Long fileSize;

    private String author;

    private LabelValueBean<String> entity;
    private LabelValueBean<String> brand;
    private LabelValueBean<String> product;
    private LabelValueBean<String> collection;
    private LabelValueBean<String> subCollection;

    private String description;
    private LabelValueBean<String> program;
    private String vintage;
    private String model;
    private String restrictedZone;
    private LabelValueBean<String> event;
    private LabelValueBean<String> language;
    private String geographicLocation;
    private String watermark;
    private Integer pageNumber;
    private String summary;
    private String agentName;
    private String commissionedByName;
    private String commissionedByDepartment;
    private LabelValueBean<Integer> bestOf;
    private String mediaLocation;

    private LabelValueBean<Integer> fullRights;
    private LabelValueBean<String> mediaUsage;
    private Date rightsEndDate;
    private String geographicRights;
    private LabelValueBean<Integer> evinConformity;
    private String contactReference;
    private LabelValueBean<String> publicationScope;
    private String rightsComment;

    public Boolean getSelected() {
        return selected;
    }

    public void setSelected(Boolean selected) {
        this.selected = selected;
    }

    public Boolean getRenditionInfoFetched() {
        return renditionInfoFetched;
    }

    public void setRenditionInfoFetched(Boolean renditionInfoFetched) {
        this.renditionInfoFetched = renditionInfoFetched;
    }

    public String getSearchPageImageRendition() {
        return searchPageImageRendition;
    }

    public void setSearchPageImageRendition(String searchPageImageRendition) {
        this.searchPageImageRendition = searchPageImageRendition;
    }

    public String getDetailPageImageRendition() {
        return detailPageImageRendition;
    }

    public void setDetailPageImageRendition(String detailPageImageRendition) {
        this.detailPageImageRendition = detailPageImageRendition;
    }

    public String getVideoRendition() {
        return videoRendition;
    }

    public void setVideoRendition(String videoRendition) {
        this.videoRendition = videoRendition;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getDocName() {
        return docName;
    }

    public void setDocName(String docName) {
        this.docName = docName;
    }

    public String getDocType() {
        return docType;
    }

    public void setDocType(String docType) {
        this.docType = docType;
    }

    public String getDocTitle() {
        return docTitle;
    }

    public void setDocTitle(String docTitle) {
        this.docTitle = docTitle;
    }

    public String getDocAuthor() {
        return docAuthor;
    }

    public void setDocAuthor(String docAuthor) {
        this.docAuthor = docAuthor;
    }

    public String getSecurityGroup() {
        return securityGroup;
    }

    public void setSecurityGroup(String securityGroup) {
        this.securityGroup = securityGroup;
    }

    public String getDocAccount() {
        return docAccount;
    }

    public void setDocAccount(String docAccount) {
        this.docAccount = docAccount;
    }

    public Integer getRevLabel() {
        return revLabel;
    }

    public void setRevLabel(Integer revLabel) {
        this.revLabel = revLabel;
    }

    public String getProfile() {
        return profile;
    }

    public void setProfile(String profile) {
        this.profile = profile;
    }

    public Date getCreateDate() {
        return createDate;
    }

    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }

    public Date getInDate() {
        return inDate;
    }

    public void setInDate(Date inDate) {
        this.inDate = inDate;
    }

    public String getOriginalName() {
        return originalName;
    }

    public void setOriginalName(String originalName) {
        this.originalName = originalName;
    }

    public String getFormat() {
        return format;
    }

    public void setFormat(String format) {
        this.format = format;
    }

    public String getExtension() {
        return extension;
    }

    public void setExtension(String extension) {
        this.extension = extension;
    }

    public Long getFileSize() {
        return fileSize;
    }

    public void setFileSize(Long fileSize) {
        this.fileSize = fileSize;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public LabelValueBean<String> getEntity() {
        return entity;
    }

    public void setEntity(LabelValueBean<String> entity) {
        this.entity = entity;
    }

    public LabelValueBean<String> getBrand() {
        return brand;
    }

    public void setBrand(LabelValueBean<String> brand) {
        this.brand = brand;
    }

    public LabelValueBean<String> getProduct() {
        return product;
    }

    public void setProduct(LabelValueBean<String> product) {
        this.product = product;
    }

    public LabelValueBean<String> getCollection() {
        return collection;
    }

    public void setCollection(LabelValueBean<String> collection) {
        this.collection = collection;
    }

    public LabelValueBean<String> getSubCollection() {
        return subCollection;
    }

    public void setSubCollection(LabelValueBean<String> subCollection) {
        this.subCollection = subCollection;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public LabelValueBean<String> getProgram() {
        return program;
    }

    public void setProgram(LabelValueBean<String> program) {
        this.program = program;
    }

    public String getVintage() {
        return vintage;
    }

    public void setVintage(String vintage) {
        this.vintage = vintage;
    }

    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public String getRestrictedZone() {
        return restrictedZone;
    }

    public void setRestrictedZone(String restrictedZone) {
        this.restrictedZone = restrictedZone;
    }

    public LabelValueBean<String> getEvent() {
        return event;
    }

    public void setEvent(LabelValueBean<String> event) {
        this.event = event;
    }

    public LabelValueBean<String> getLanguage() {
        return language;
    }

    public void setLanguage(LabelValueBean<String> language) {
        this.language = language;
    }

    public String getGeographicLocation() {
        return geographicLocation;
    }

    public void setGeographicLocation(String geographicLocation) {
        this.geographicLocation = geographicLocation;
    }

    public String getWatermark() {
        return watermark;
    }

    public void setWatermark(String watermark) {
        this.watermark = watermark;
    }

    public Integer getPageNumber() {
        return pageNumber;
    }

    public void setPageNumber(Integer pageNumber) {
        this.pageNumber = pageNumber;
    }

    public String getSummary() {
        return summary;
    }

    public void setSummary(String summary) {
        this.summary = summary;
    }

    public String getAgentName() {
        return agentName;
    }

    public void setAgentName(String agentName) {
        this.agentName = agentName;
    }

    public String getCommissionedByName() {
        return commissionedByName;
    }

    public void setCommissionedByName(String commissionedByName) {
        this.commissionedByName = commissionedByName;
    }

    public String getCommissionedByDepartment() {
        return commissionedByDepartment;
    }

    public void setCommissionedByDepartment(String commissionedByDepartment) {
        this.commissionedByDepartment = commissionedByDepartment;
    }

    public LabelValueBean<Integer> getBestOf() {
        return bestOf;
    }

    public void setBestOf(LabelValueBean<Integer> bestOf) {
        this.bestOf = bestOf;
    }

    public String getMediaLocation() {
        return mediaLocation;
    }

    public void setMediaLocation(String mediaLocation) {
        this.mediaLocation = mediaLocation;
    }

    public LabelValueBean<Integer> getFullRights() {
        return fullRights;
    }

    public void setFullRights(LabelValueBean<Integer> fullRights) {
        this.fullRights = fullRights;
    }

    public LabelValueBean<String> getMediaUsage() {
        return mediaUsage;
    }

    public void setMediaUsage(LabelValueBean<String> mediaUsage) {
        this.mediaUsage = mediaUsage;
    }

    public Date getRightsEndDate() {
        return rightsEndDate;
    }

    public void setRightsEndDate(Date rightsEndDate) {
        this.rightsEndDate = rightsEndDate;
    }

    public String getGeographicRights() {
        return geographicRights;
    }

    public void setGeographicRights(String geographicRights) {
        this.geographicRights = geographicRights;
    }

    public LabelValueBean<Integer> getEvinConformity() {
        return evinConformity;
    }

    public void setEvinConformity(LabelValueBean<Integer> evinConformity) {
        this.evinConformity = evinConformity;
    }

    public String getContactReference() {
        return contactReference;
    }

    public void setContactReference(String contactReference) {
        this.contactReference = contactReference;
    }

    public LabelValueBean<String> getPublicationScope() {
        return publicationScope;
    }

    public void setPublicationScope(LabelValueBean<String> publicationScope) {
        this.publicationScope = publicationScope;
    }

    public String getRightsComment() {
        return rightsComment;
    }

    public void setRightsComment(String rightsComment) {
        this.rightsComment = rightsComment;
    }
}

我正在尝试将属性从 SearchContent 复制到 Content 为:

Content content = new Content();        
Converter converter = new DateConverter(null);
BeanUtilsBean beanUtilsBean = BeanUtilsBean.getInstance();
beanUtilsBean.getConvertUtils().register(converter, Date.class);        
BeanUtils.copyProperties(searchContent, content);

System.out.println(searchContent);
System.out.println(content);

Sysout 正在打印:

com.mhis.dam.service.search.bean.SearchContent[id=52906,docName=MHIS043570,docType=Images,docTitle=preview_1_8,docAuthor=sysadmin,securityGroup=Internal,docAccount=WF/017/DAM/000,revLabel=1,profile=DAMMedia,workflowStage=com.mhis.dam.generic.bean.LabelValueBean[label=Published,value=published],createDate=Fri Oct 18 15:30:35 IST 2013,inDate=Fri Oct 18 15:30:35 IST 2013,originalName=Vintage 2004 Gift Box & Bottle Black - hires.jpg,format=image/jpeg,extension=jpg,fileSize=2106898,author=Arjan,entity=com.mhis.dam.generic.bean.LabelValueBean[label=Dom Perignon,value=WF/017/DAM],brand=com.mhis.dam.generic.bean.LabelValueBean[label=Dom Perignon,value=WF/017/DAM/001],product=com.mhis.dam.generic.bean.LabelValueBean[label=Blanc,value=17_1_blanc],collection=com.mhis.dam.generic.bean.LabelValueBean[label=Pack shot,value=pack_shot_dp],subCollection=com.mhis.dam.generic.bean.LabelValueBean[label=Bottle shot,value=ps_bottle_dp],description=preview_1,program=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=],vintage=,model=,restrictedZone=,event=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=],language=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=],geographicLocation=,watermark=,pageNumber=0,summary=,agentName=,commissionedByName=Nicolas,commissionedByDepartment=,bestOf=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=0],mediaLocation=,fullRights=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=1],mediaUsage=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=],rightsEndDate=<null>,geographicRights=,evinConformity=com.mhis.dam.generic.bean.LabelValueBean[label=<null>,value=2],contactReference=,publicationScope=com.mhis.dam.generic.bean.LabelValueBean[label=Full public usage,value=fullPublic],rightsComment=]
com.mhis.dam.web.model.Content[selected=<null>,renditionInfoFetched=<null>,searchPageImageRendition=<null>,detailPageImageRendition=<null>,videoRendition=<null>,id=<null>,docName=<null>,docType=<null>,docTitle=<null>,docAuthor=<null>,securityGroup=<null>,docAccount=<null>,revLabel=<null>,profile=<null>,createDate=<null>,inDate=<null>,originalName=<null>,format=<null>,extension=<null>,fileSize=<null>,author=<null>,entity=<null>,brand=<null>,product=<null>,collection=<null>,subCollection=<null>,description=<null>,program=<null>,vintage=<null>,model=<null>,restrictedZone=<null>,event=<null>,language=<null>,geographicLocation=<null>,watermark=<null>,pageNumber=<null>,summary=<null>,agentName=<null>,commissionedByName=<null>,commissionedByDepartment=<null>,bestOf=<null>,mediaLocation=<null>,fullRights=<null>,mediaUsage=<null>,rightsEndDate=<null>,geographicRights=<null>,evinConformity=<null>,contactReference=<null>,publicationScope=<null>,rightsComment=<null>]

Content 类的 selected 和 renditionInfoFetched 字段显然有 null 值，因为它们不存在于 中SearchContent 但您可以看到 Content 的所有其他属性为 null。我找不到我做错了什么!

任何指针都会非常有帮助。

最佳答案

Java中有两个BeanUtils.copyProperties(parameter1, parameter2)

一个是

org.apache.commons.beanutils.BeanUtils.copyProperties(Object dest, Object orig)

另一个是

org.springframework.beans.BeanUtils.copyProperties(Object source, Object target)

注意参数的相反位置。

关于java - 如何使用 BeanUtils.copyProperties？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19763278/

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java - BeanUtils.copyProperties 缺少深度嵌套变量？
我正在使用 BeanUtils.copyProperties 将一个对象的全部内容复制到从它继承的另一个对象中。这里是上下文，从中复制值的域对象包含一组自定义类型 Xref 的对象。该自定义类型有一
java - BeanUtils.copyproperties 日期属性复制问题？
我正在使用 commons-beanutils 1.8.3 和 Date 属性作为 java.util.Date。当我尝试将源复制到目标时，它无法复制日期属性。以下是我之前的问题，但是没有人给我正
java - BeanUtils.copyProperties 和嵌套列表
我想将一个对象转换为另一个对象，为此我使用 Spring BeanUtils。但是 Bag 类型的属性“foo” (从 Hibernate 发出)被复制到 List 类型的目标对象中没有问题。使用相
java - PropertyUtils.copyProperties 什么时候可以静默失败？
我正在使用 PropertyUtils.copyProperties()通过反射复制对象的属性，它曾经工作得很好。然而最近，它开始无所事事。它不会抛出异常，但不会复制任何字段。尽管源对象中有非空字段
java - BeanUtils.copyProperties 是否进行深度克隆？
为了测试这一点，我迅速做出了以下: public class Test { public static void main(String[] args) { try { Employee e
java - BeanUtils copyProperties 复制Arraylist
我知道 BeanUtils 可以将单个对象复制到其他对象。是否可以复制数组列表。例如: FromBean fromBean = new FromBean("fromBean", "fromBea
java - 如何使用 BeanUtils.copyProperties？
我正在尝试将属性从一个 bean 复制到另一个。下面是两个 bean 的签名: 搜索内容: public class SearchContent implements Serializable {
BeanUtils.copyProperties：曾经是我的女神，现在是我的毒药。
前言 BeanUtils.copyProperties十有八九是你这些年工作中用的很多的其中一个，不管是Apache的还是Spring的。网上的解释浩如烟海，我这边用一
java - 使用 BeanUtils.copyProperties 导致参数类型不匹配
dto 对象: public class DTOUser implements UserDetails { /** * */ private static final long serialVer
java - Apache BeanUtils.copyProperties 溢出了太多日志
如何关闭 BeanUtils.copyProperties 的日志记录？它会创建过多的日志并妨碍日志文件的可读性。谢谢堆.. 示例代码 BeanUtils.copyProperties(someDat
java - 使用 BeanUtils.copyProperties 复制特定字段？
springframework.beans.BeanUtils 对于复制对象非常有用，我经常使用“ignoreProperties”选项。但是，有时我只想复制特定的对象(基本上，与“忽略属性”相反)。
java - Beanutils.copyProperties 与 protected 设置方法
有没有办法让 BeanUtils 使用 protected setXXX(X x) 方法？或者您知道执行此操作的其他方法吗？类似于: public class A{ private Stri
java - 使用 BeanUtils.copyProperties 时如何为数值保持 null？
我有一个数字数据库字段(SQL Server 2000 中的 numeric(3))允许空值，而空值是我首选的“无值”值。该字段映射到非原始 java Long Hibernate 中的类: 字段
java - 当我修改 BeanUtils.CopyProperties 的目标对象时，源代码被修改
我已在的帮助下将一个对象复制到另一个对象中 BeanUtils.CopyProperties(Src,Dest); From : package org.springframework.beans;

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java - 如何使用 BeanUtils.copyProperties？