{"id":98380,"date":"2020-03-25T06:39:01","date_gmt":"2020-03-24T22:39:01","guid":{"rendered":"http:\/\/4563.org\/?p=98380"},"modified":"2020-03-25T06:39:01","modified_gmt":"2020-03-24T22:39:01","slug":"%e6%98%af%e5%90%a6%e6%9c%89-java-%e7%b1%bb%e5%ba%93%e5%8f%af%e4%bb%a5%e5%af%b9%e7%9a%84-java-bean-%e8%bf%9b%e8%a1%8c%e4%b8%80%e4%ba%9b%e9%a2%9d%e5%a4%96%e7%9a%84%e5%a4%84%e7%90%86%e9%80%bb%e8%be%91","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=98380","title":{"rendered":"\u662f\u5426\u6709 Java \u7c7b\u5e93\u53ef\u4ee5\u5bf9\u7684 Java Bean \u8fdb\u884c\u4e00\u4e9b\u989d\u5916\u7684\u5904\u7406\u903b\u8f91"},"content":{"rendered":"
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\u662f\u5426\u6709 Java \u7c7b\u5e93\u53ef\u4ee5\u5bf9\u7684 Java Bean \u8fdb\u884c\u4e00\u4e9b\u989d\u5916\u7684\u5904\u7406\u903b\u8f91 <\/h1>\n

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\u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span> <\/i> 48<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u5bf9\u4e8e\u4e00\u4e9b\u7b2c\u4e09\u65b9\u7684\u6570\u636e\u603b\u662f\u8981\u8fdb\u884c\u4e00\u4e9b\u5904\u7406\u7136\u540e\u624d\u80fd\u8fdb\u5165\u4e1a\u52a1\u903b\u8f91<\/p>\n

Class PoJo {     @Trim  private String name;   @Default(value= new Date())      private Date date;   } <\/code><\/pre>\n
\u5bf9\u4e8e Trim \u6765\u8bf4, \u5982\u679c\u7b2c\u4e09\u65b9\u4f20\u8fc7\u6765\u7684 name = \"hello \"<\/code> , \u90a3\u4e48\u7ecf\u8fc7\u5904\u7406\u4e4b\u540e name=\"hello\"<\/code> .<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (28<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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     \u8cc7\u6df1\u5927\u4f6c : guyeu <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6ca1\u6709\u3002\u611f\u89c9\u8fd9\u79cd\u4e1c\u897f\u4e0d\u4f46\u6ca1\u529e\u6cd5\u89e3\u51b3\u95ee\u9898\uff0c\u8fd8\u4f1a\u9020\u6210\u95ee\u9898\u3002\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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                                                                 @guyeu #1 \u6709\u4ec0\u4e48\u95ee\u9898?                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xbigfat <\/span>  <\/div>\n
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                                                                 \u6211\u89c9\u5f97\u53ef\u4ee5\u81ea\u5df1\u5b9e\u73b0\u8fd9\u4e2a\u6ce8\u89e3                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : joichuai <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 mark \u4e0b\u7b49\u5927\u4f6c\u56de\u590d\uff0c\u81ea\u5df1\u5e73\u65f6\u9047\u5230\u7684\u9876\u591a\u662f\u4e0b\u5212\u7ebf\u9a7c\u5cf0\u4e92\u76f8\u8f6c\uff0c\u590d\u6742\u4e1a\u52a1\u90fd\u81ea\u5df1\u4ee3\u7801\u91cc\u8f6c\u6362\u4e86\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : sonyxperia <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 https:\/\/chenzhihao.cc\/2019\/06\/13\/Springmvc%E8%AF%B7%E6%B1%82%E5%8F%82%E6%95%B0%E7%9A%84%E4%BC%98%E9%9B%85%E5%A4%84%E6%96%B9%E5%BC%8F\/                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xiaoyu03 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 Spring \u7684\u8bdd\u7528\u5b9e\u73b0 AnnotationFormatterFactory \u63a5\u53e3\u81ea\u5b9a\u4e49\u6ce8\u89e3\u53ef\u4e0d\u53ef\u884c\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @sonyxperia #5 \u6211\u5e0c\u671b\u662f\u4e00\u4e2a\u548c\u6846\u67b6\u65e0\u5173\u7684\u5b9e\u73b0, \u53ea\u8981\u7b26\u5408 Java Bean \u7684\u89c4\u8303\u5c31\u597d\u4e86, \u4f60\u6ca1\u529e\u6cd5\u4fdd\u8bc1\u7528\u6237\u7684\u8f93\u5165\u4ece\u54ea\u91cc\u6765, \u5982\u679c\u8fd9\u4e9b\u8f93\u5165\u662f\u4ece\u4e00\u4e2a Json \u6587\u4ef6\u4e2d\u8bfb\u53d6\u51fa\u6765\u7684, \u90a3\u4e48 Spring MVC \u90a3\u4e00\u5957\u5c31\u6ca1\u529e\u6cd5\u7528\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xiaoyu03 #6 \u6211\u5e0c\u671b\u662f\u4e00\u4e2a\u548c\u6846\u67b6\u65e0\u5173\u7684\u5b9e\u73b0, \u53ea\u8981\u7b26\u5408 Java Bean \u7684\u89c4\u8303\u5c31\u597d\u4e86, \u4f60\u6ca1\u529e\u6cd5\u4fdd\u8bc1\u7528\u6237\u7684\u8f93\u5165\u4ece\u54ea\u91cc\u6765, \u5982\u679c\u8fd9\u4e9b\u8f93\u5165\u662f\u4ece\u4e00\u4e2a Json \u6587\u4ef6\u4e2d\u8bfb\u53d6\u51fa\u6765\u7684, \u90a3\u4e48 Spring MVC \u90a3\u4e00\u5957\u5c31\u6ca1\u529e\u6cd5\u7528\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xbigfat #3 \u60f3\u95ee\u4e00\u4e0b\u6709\u6ca1\u6709\u73b0\u6210\u7684\u65b9\u6848                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : Cbdy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u53ef\u4ee5\u8003\u8651\u81ea\u5b9a\u4e49 getter                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @Cbdy #10 \u5982\u679c\u4f5c\u4e3a\u4e00\u4e2a Data Entity, \u6709\u53ef\u80fd\u662f\u4f60\u8fd9\u8fb9\u5904\u7406\u4e00\u904d\u4e4b\u540e\u518d\u5e8f\u5217\u5316\u7136\u540e\u53d1\u9001\u7ed9\u522b\u7684\u7a0b\u5e8f, \u90a3\u4e48 getter \u4e2d\u7684\u903b\u8f91\u662f\u6ca1\u529e\u6cd5\u88ab\u5e8f\u5217\u5316\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : Raymon111111 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u62e6\u622a\u5728\u65b9\u6cd5\u4e0a?                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : guyeu <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @lihongjie0209 #2 \u6839\u636e\u7ea6\u5b9a\uff0cJavaBeans \u4e00\u5b9a\u662f\u53ef\u4ee5\u88ab\u5e8f\u5217\u5316\u7684\uff0c\u4f60\u5c55\u793a\u7684\u6ce8\u89e3\u7ed9\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u5e26\u6765\u4e86\u4e0d\u786e\u5b9a\u548c\u4e0d\u4e00\u81f4\uff0c\u7531\u6b64\u53ef\u80fd\u4ea7\u751f\u65e0\u6570 bug\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @guyeu #13 
    \u6211\u5e0c\u671b\u7684\u662f\u8fd9\u6837\u7684
    “`
    pojo.setName(Strings.trim(pojo.getName()))
    “`
    \u6240\u4ee5\u5e76\u4e0d\u4f1a\u7834\u574f JavaBean \u7684\u89c4\u8303                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : chendy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u9ed8\u8ba4\u4f60\u7528\u7684\u662f jackson\u2026
    \u76f4\u63a5 trim \u5b57\u7b26\u4e32 https:\/\/stackoverflow.com\/questions\/6852213\/
    \u9ed8\u8ba4\u503c\u8003\u8651\u7528 Option \u5b9e\u73b0\u4e00\u4e0b\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @chendy #15 \u548c jackson \u6ca1\u5173\u7cfb, \u6211\u6709\u4e00\u4e2a <\/p>\n
    pojo = new pojo(“hello “, null)<\/p>\n
    \u6211\u60f3\u627e\u4e00\u4e2a library <\/p>\n
    newPojo = library.process(pojo)<\/p>\n
    assertEquals(newPojo.getName(), “hello”)
    assertTrue(newPojo.getDate()!=null)                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : junbaor <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5982\u679c\u8981\u6c42\u662f get \u65b9\u6cd5\u8fd4\u56de\u7684\u88ab\u5904\u7406\uff0c\u53ef\u4ee5\u7814\u7a76\u4e00\u4e0b lombok \u7684\u601d\u8def                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : chendy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @lihongjie0209 emm\u2026\u611f\u89c9\u53ef\u4ee5\u81ea\u5df1\u53cd\u5c04\u4e00\u628a\u68ad\u4e86\u2026                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @chendy #18 \u55ef, \u6ca1\u6709\u5408\u9002\u7684\u7c7b\u5e93\u53ea\u80fd\u8fd9\u6837\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : Cbdy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @lihongjie0209 \u5176\u5b9e\u4f60\u7684\u9700\u6c42\u5f88\u7b80\u5355\uff0c\u5b8c\u5168\u53ef\u4ee5\u81ea\u5df1\u5199\u4e00\u4e2a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : lychs1998 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u81ea\u5df1\u5b9a\u4e49\u4e00\u4e2a @Trim \u6ce8\u89e3\uff0c\u5b9a\u4e49\u4e00\u4e2a\u62e6\u622a\u5668\u6216\u5207\u9762\uff0c\u5bf9\u8bf7\u6c42\u53c2\u6570\u7684\u6240\u6709 field \u8fdb\u884c\u68c0\u67e5\uff0c\u627e\u5230 @Trim \u6ce8\u89e3\u7684\u5c31\u53bb\u68c0\u67e5\u683c\u5f0f\u662f\u5426\u7b26\u5408\uff0c\u4e0d\u7b26\u5408\u7684\u5904\u7406\u540e\u7ee7\u7eed\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @Cbdy #20 \u6211\u4e4b\u524d\u8ba4\u4e3a BeanUtil \u7684 copy \u5f88\u7b80\u5355, \u77e5\u9053\u6211\u9047\u5230\u4e86 MapStruct \u6211\u624d\u77e5\u9053\u8fd8\u80fd\u8fd9\u4e48\u73a9                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xxdd <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 MapStruct \u8fd9\u4e2a\u6d4b\u8fc7\u6548\u7387\u6ca1 \u4e00\u76f4\u6ca1\u6d4b\u8fc7                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : lux182 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 bean \u53ea\u7528\u4e86 lombok\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : optional <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8981\u60f3\u4e0d\u4f9d\u8d56\u6846\u67b6\uff0c\u53ea\u80fd\u7528 annotation processor                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : Octopvs <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5176\u5b9e BeanUtils \u8fd9\u4e9b\u90fd\u662f\u5bf9 Bean \u7684 set \u65b9\u6cd5\u8fdb\u884c\u4e00\u4e2a\u8c03\u7528\uff0c\u90a3\u4e48\u53ef\u4ee5\u5728 set \u65b9\u6cd5\u91cc\u505a\u4e00\u4e9b\u624b\u811a\uff1b A->A1->A\uff0cA1 \u7684 set \u65b9\u6cd5\u505a\u8fc7\u624b\u811a\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u5feb\u901f\u7684\u8f6c\u6362\u3002
     Person person = new Person(1L,”li”,20);
     PersonU pu = new PersonU();
     BeanUtils.copyProperties(person,pu);
     BeanUtils.copyProperties(pu,person);
     System.out.println(person);
    \u5728 PersonU \u4e2d\u7684 set \u8fdb\u884c\u4e00\u4e2a\u5e74\u9f84+1                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : lihongjie0209 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xxdd #23 \u76ee\u6d4b\u662f\u6700\u597d\u7684\uff0c \u5b8c\u5168\u4ee3\u7801\u751f\u6210\uff0c \u4e0d\u6d89\u53ca\u53cd\u5c04                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : KentY <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xxdd MapStruct \u662f\u5e38\u89c1\u7684 mapping frameworks(\u76f8\u6bd4 jmapper, dozer, modelmapper, orika)\u91cc\u6027\u80fd\u6700\u9ad8\u7684.                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
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