{"id":94138,"date":"2020-04-25T23:26:56","date_gmt":"2020-04-25T15:26:56","guid":{"rendered":"http:\/\/4563.org\/?p=94138"},"modified":"2020-04-25T23:26:56","modified_gmt":"2020-04-25T15:26:56","slug":"jpa-%e5%85%b3%e4%ba%8e-list-item-%e5%b1%95%e7%a4%ba%e9%a1%ba%e5%ba%8f%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=94138","title":{"rendered":"JPA \u5173\u4e8e list-item \u5c55\u793a\u987a\u5e8f\u95ee\u9898"},"content":{"rendered":"
\n
\n
\n

JPA \u5173\u4e8e list-item \u5c55\u793a\u987a\u5e8f\u95ee\u9898 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/i> 18<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
\u6bd4\u5982\u4e00\u4e2a\u6587\u7ae0\u5217\u8868\uff0c\u652f\u6301\u79fb\u52a8\u67d0\u4e2a\u6587\u7ae0\u5728\u6587\u7ae0\u5217\u8868\u91cc\u9762\u7684\u987a\u5e8f
\u6211\u7684\u60f3\u6cd5\u662f\u7ed9\u6587\u7ae0\u52a0\u4e00\u4e2a order \u5b57\u6bb5\uff0c\u8ba9\u4ed6\u63d2\u5165\u65f6\u81ea\u589e\uff0c\u68c0\u7d22\u65f6\u6309\u7167 order \u964d\u5e8f\u6392\u5217
\u79fb\u52a8\u987a\u5e8f\u65f6\uff0c\u5c31\u53bb\u627e\u76ee\u6807\u4f4d\u7f6e\u53bb\u66f4\u6539\u8fd9\u4e2a order \u5b57\u6bb5
\u611f\u89c9\u8fd9\u6837\u95ee\u9898\u4f1a\u6bd4\u8f83\u591a IDENTITTY @generatedValue \u540e\u7eed\u66f4\u6539\u662f\u5426\u4f1a\u51fa\u95ee\u9898\u5462\uff1f
\u50cf\u8fd9\u79cd\u573a\u666f\uff0c\u6700\u597d\u7684\u8bbe\u8ba1\u5e94\u8be5\u662f\u600e\u6837\u7684 <\/div>\n
\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (17<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wysnylc <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u52a0\u5b57\u6bb5\u6ca1\u95ee\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @wysnylc \u79fb\u52a8\u987a\u5e8f\u7684\u8bdd\u76f8\u5f53\u4e8e\u8981\u91cd\u65b0\u6539\u591a\u6761\u8bb0\u5f55\u7684 order\uff0c\u6709\u66f4\u597d\u7684\u65b9\u6cd5\u561b <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : jjianwen68 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5355\u52a0\u4e00\u4e2a\u5b57\u6bb5\u8868\u793a\u6392\u5e8f\uff0c\u4e0d\u592a\u591f\u5427\uff0c\u7f6e\u9876\uff0c\u6309\u6807\u7b7e\u7b5b\u9009\u540e\u7684\u6392\u5e8f\u5462 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @jjianwen68 \u7f6e\u9876\u662f\u72ec\u7acb\u4e8e\u6392\u5e8f\u7684\u8fd9\u4e2a\u987a\u5e8f\u7684\uff0c\u5355\u72ec\u5f04\u4e86\u4e2a\u7f6e\u9876\u8868
    \u5982\u679c\u6309\u6807\u7b7e\u7b5b\u9009\u6392\u5e8f\uff0c\u7528 order \u6ca1\u4ec0\u4e48\u6bdb\u75c5\uff1a\u6309\u6807\u7b7e\u7b5b\u4e86\u4ee5\u540e\u518d\u6309 order \u6392
    \u8fd9\u6837\u4e00\u60f3\u7684\u8bdd\uff0c\u597d\u50cf\u9650\u5236\u53ea\u80fd\u4e0a\u79fb\u4e0b\u79fb\u987a\u5e8f\uff0c\u5c31\u4e0d\u7528\u5904\u7406 order \u66f4\u6539\u9ebb\u70e6\u7684\u95ee\u9898 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : KentY <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @StyxS \u4f60\u5982\u679c\u9700\u8981\u987a\u5e8f\u8fd9\u4e2a\u4fe1\u606f persist \u5728\u6570\u636e\u5e93\u91cc, \u5f53\u4f60\u4fee\u6539\u4e86\u8fd9\u4e2a(\u6bd4\u5982\u79fb\u52a8\u4e86), \u80af\u5b9a\u8fd9\u4e2a\u6587\u7ae0 entry \u4f1a\u88ab update.\u6ca1\u95ee\u9898.<\/p>\n

    \u4f60\u7528 `IDENTITTY @generatedValue` \u80af\u5b9a\u4e0d\u884c, \u56e0\u4e3a\u4f60\u8981\u7684 order \u4e0d\u662f identity<\/p>\n

    \u4f60\u8bf4\u9053:”\u79fb\u52a8\u987a\u5e8f\u65f6\uff0c\u5c31\u53bb\u627e\u76ee\u6807\u4f4d\u7f6e\u53bb\u66f4\u6539\u8fd9\u4e2a order \u5b57\u6bb5”
    \u5982\u679c\u4f60\u7528\u81ea\u52a8\u589e\u91cf+1 \u8fd9\u79cd\u65b9\u5f0f, \u4f60\u8003\u8651\u8fc7\u6ca1\u6709, \u6bd4\u5982:\u4f60\u7684 order column:
    1,2,3,4,5 \u73b0\u5728\u4f60\u79fb\u52a8 5 \u5230 1 \u548c 2 \u4e4b\u95f4, \u4f60\u9700\u8981 update \u591a\u5c11\u6761\u8bb0\u5f55\u624d\u53d8\u6210\u65b0\u7684 1,2(\u539f\u6765\u7684 5),3(\u539f\u6765\u7684 2),4(\u539f\u6765\u7684 3),5(\u539f\u6765\u7684 4) <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @KentY \u662f\u7684\uff0c\u6240\u4ee5\u6211\u60f3\u8bf7\u6559\u4e00\u4e0b\u6b63\u786e\u7684\u8fd9\u79cd\u201c\u5c55\u793a\u987a\u5e8f\u201d\u5e94\u8be5\u7528\u4ec0\u4e48\u6837\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : KentY <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @StyxS \u53ef\u4ee5\u8bbe\u7f6e\u4e24\u4e2a\u5b57\u6bb5, \u4e00\u4e2a\u4f60\u8bf4\u7684 order, \u53e6\u4e00\u4e2a\u4e5f\u662f\u6570\u5b57, \u9ed8\u8ba4\u4e00\u4e2a\u76f8\u540c\u7684\u5c31\u53ef\u4ee5,\u5904\u7406\u5f53 order \u503c\u4e00\u6837\u7684\u60c5\u51b5\u4e0b, \u4ec5\u5bf9\u76f8\u540c order \u7684\u8bb0\u5f55\u8fdb\u884c\u91cd\u6392.
    \u8fd9\u6837\u6709\u6548\u9650\u5236\u4e86 update \u7684\u8bb0\u5f55\u6570. \u5982\u679c\u4e3b\u8868\u7279\u522b\u5927, \u6839\u636e\u4f60\u7528\u7684\u6570\u636e\u5e93\u4e0d\u540c, \u53ef\u4ee5\u8003\u8651\u662f\u4e0d\u662f\u5355\u72ec\u51fa\u6765\u4e00\u4e2a\u8868\u4f1a\u5728\u6027\u80fd\u4ee5\u53ca lock \u4e0a\u6709\u5e2e\u52a9. \u7c7b\u4f3c:
    order| sub-order
    1,0
    2,0
    3,0
    3,1
    3,2 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @KentY \u611f\u8c22 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : snowydec <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @OrderColumn \u6ce8\u89e3\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @snowydec \u770b\u4e86\u4e0b\uff0cordercolumn \u597d\u50cf\u662f\u5e94\u7528\u5728\u6210\u5458\u5217\u8868\u4e0a\u6765\u7ef4\u6301\u6392\u5e8f\u7684\uff0c\u4f46\u662f\u8fd9\u4e2a\u5730\u65b9\u6587\u7ae0\u8868\u597d\u50cf\u5e76\u4e0d\u80fd\u7528\u4e0a\u8fd9\u4e2a\u5427\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ConradG <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    order \u5b57\u6bb5\u7528\u6d6e\u70b9\u7c7b\u578b\uff0c\u53d8\u66f4\u987a\u5e8f\u53ea\u7528\u524d\u4e00\u6761\u548c\u540e\u4e00\u6761\u7684 order \u53d6\u5e73\u5747 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : KentY <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ConradG \u8fd9\u4e2a\u8981\u770b\u4ed6\u4ec0\u4e48\u8981\u6c42, \u5f53\u4e00\u5b9a\u60c5\u51b5\u4e0b, \u603b\u4f1a\u8d85\u8fc7\u5b9a\u4e49\u7684\u7cbe\u5ea6\u8981\u6c42 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : Allianzcortex <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5982\u679c\u662f\u7c7b\u4f3c trello \u8fd9\u6837\u53ef\u4ee5\u4e0a\u4e0b\u62d6\u52a8\u6539\u53d8 ticket \u7684\u4f18\u5148\u7ea7\u529f\u80fd\uff0c\u5b83\u7684\u5b9e\u73b0\u662f\u6bcf\u4e2a ticket \u7ef4\u62a4\u4e00\u4e2a after_id \u5b57\u6bb5\uff0c\u62d6\u52a8\u540e\u4f1a put \u4e00\u4e2a\u8bf7\u6c42\u66f4\u65b0\u5b57\u6bb5\uff0c\u7136\u540e\u524d\u7aef\u663e\u793a\u65f6\u4f1a\u6839\u636e\u6574\u4e2a id \u6392\u5e8f\u540e\u518d\u5c55\u793a <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : lybcyd <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u7528\u94fe\u8868\u7684\u601d\u8def\u505a\u53ef\u4ee5\u5417\uff1f\u8fd9\u6837\u7684\u8bdd\u79fb\u52a8\u987a\u5e8f\u53ea\u9700\u8981\u66f4\u6539\u5173\u8054\u5b57\u6bb5\u5c31\u53ef\u4ee5\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @ConradG \u8fd9\u4e2a\u601d\u8def\u5f88\u725b\u903c\uff0c\u5b66\u4e60\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @Allianzcortex \u610f\u601d\u662f\u524d\u7aef\u6765\u6392\u5e8f\uff1f\u90a3\u5206\u9875\u7684\u8bdd\u5e94\u8be5\u600e\u4e48\u529e\u5462 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : StyxS <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @lybcyd \u94fe\u8868\u7684\u8bdd\uff0c\u6301\u4e45\u5316\u4e0d\u592a\u65b9\u4fbf\u5427 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    JPA \u5173\u4e8e list-item …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/94138"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=94138"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/94138\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=94138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=94138"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=94138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}