{"id":10006737,"date":"2022-10-26T15:23:42","date_gmt":"2022-10-26T07:23:42","guid":{"rendered":"https:\/\/ityet.com\/?p=10006737"},"modified":"2022-10-26T15:23:42","modified_gmt":"2022-10-26T07:23:42","slug":"%e5%9c%a8-java-%e4%bb%a3%e7%a0%81%e4%b8%ad%e6%9d%a5%e4%b8%80%e6%ae%b5-javascript%ef%bc%9f%e8%81%8a%e8%81%8a-flowable-%e4%b8%ad%e7%9a%84%e8%84%9a%e6%9c%ac%e4%bb%bb%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006737","title":{"rendered":"\u5728 Java \u4ee3\u7801\u4e2d\u6765\u4e00\u6bb5 JavaScript\uff1f\u804a\u804a Flowable \u4e2d\u7684\u811a\u672c\u4efb\u52a1"},"content":{"rendered":"

\u524d\u9762\u7684\u6587\u7ae0\u6211\u4eec\u4e00\u8d77\u73a9\u4e86 Flowable \u4e2d\u7684 ServiceTask\uff0c\u4eca\u5929\u6211\u4eec\u518d\u6765\u770b\u770b Flowable \u4e2d\u7684\u811a\u672c\u4efb\u52a1\u3002<\/p>\n

1. \u811a\u672c\u4efb\u52a1<\/h2>\n

\u4e2a\u4eba\u611f\u89c9\u811a\u672c\u4efb\u52a1\u548c\u6211\u4eec\u524d\u9762\u8bf4\u7684 ServiceTask \u5f88\u50cf\uff0c\u90fd\u662f\u6d41\u7a0b\u8d70\u5230\u8fd9\u4e2a\u8282\u70b9\u7684\u65f6\u5019\u81ea\u52a8\u505a\u4e00\u4e9b\u4e8b\u60c5\uff0c\u4e0d\u540c\u7684\u662f\uff0c\u5728 ServiceTask \u4e2d\uff0c\u6d41\u7a0b\u5728\u8fd9\u4e2a\u8282\u70b9\u4e2d\u6240\u505a\u7684\u4e8b\u60c5\u662f\u7528 Java \u4ee3\u7801\u5199\u7684\uff0c\u5728\u811a\u672c\u4efb\u52a1\u4e2d\uff0c\u6d41\u7a0b\u5728\u8fd9\u4e2a\u8282\u70b9\u4e2d\u6240\u505a\u7684\u4e8b\u60c5\u5219\u662f\u7528\u5176\u4ed6\u4e00\u4e9b\u811a\u672c\u8bed\u8a00\u5982 JavaScript\u3001Groovy\u3001Juel \u7b49\u5199\u7684\u3002<\/p>\n

\u811a\u672c\u4efb\u52a1\u7684\u56fe\u6807\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n

\"\"<\/p>\n

2. \u5b9e\u8df5<\/h2>\n

\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6211\u4eec\u6765\u4e00\u8d77\u770b\u4e0b\u3002<\/p>\n

2.1 JavaScript \u811a\u672c<\/h3>\n

\u6211\u4eec\u5148\u6765\u770b\u7528 JavaScript \u5199\u8fd9\u4e2a\u811a\u672c\u3002<\/p>\n

\u5047\u8bbe\u6211\u6709\u5982\u4e0b\u6d41\u7a0b\u56fe\uff1a<\/p>\n

\"\"<\/p>\n

\u4e2d\u95f4\u8fd9\u4e2a\u8282\u70b9\u5c31\u662f\u4e00\u4e2a\u811a\u672c\u4efb\u52a1\u3002<\/p>\n

\u9009\u4e2d\u8be5\u8282\u70b9\uff0c\u6211\u4eec\u5148\u914d\u7f6e\u811a\u672c\u8bed\u8a00\u662f JavaScript\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n

\"\"<\/p>\n

\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u4f7f\u7528\u7b80\u5199\u7684 js\u3002<\/p><\/blockquote>\n

\u7136\u540e\u518d\u70b9\u51fb\u53f3\u8fb9\u7684\u811a\u672c\uff0c\u914d\u7f6e\u811a\u672c\uff0c\u5982\u4e0b\u56fe\uff1a<\/p>\n

\"\"<\/p>\n

\u4e0a\u9762\u8fd9\u91cc\u6211\u5199\u4e86\u4e24\u884c JavaScript \u811a\u672c\uff1a<\/p>\n

    \n
  1. \u7b2c\u4e00\u884c\u8868\u793a\u6d41\u7a0b\u6267\u884c\u5230\u8fd9\u91cc\u7684\u65f6\u5019\uff0c\u9700\u8981\u505a\u4e00\u4e2a\u7b80\u5355\u7684\u52a0\u6cd5\u8fd0\u7b97\uff0ca \u548c b \u4e24\u4e2a\u53d8\u91cf\u5219\u9700\u8981\u6d41\u7a0b\u4f20\u5165\u8fdb\u6765\u3002<\/li>\n
  2. \u7b2c\u4e8c\u884c\u8868\u793a\u5f80\u6d41\u7a0b\u4e2d\u5b58\u50a8\u4e00\u4e2a\u540d\u4e3a sum \u7684\u53d8\u91cf\uff0c\u53d8\u91cf\u503c\u5c31\u662f\u524d\u9762\u8ba1\u7b97\u7684\u7ed3\u679c\uff0c\u5176\u4e2d execution \u662f\u4e00\u4e2a\u5185\u7f6e\u53d8\u91cf\u3002\u8fd9\u4e2a\u5c31\u7c7b\u4f3c\u4e8e\u6211\u4eec\u542f\u52a8\u6d41\u7a0b\u65f6\u5019\u4f20\u5165\u7684\u53d8\u91cf\u4e00\u6837\u3002<\/li>\n<\/ol>\n

    \u5728 ES6 \u4e2d\u6211\u4eec\u5e38\u7528\u7684 let \u5173\u952e\u5b57\u8fd9\u91cc\u5e76\u4e0d\u652f\u6301\uff0c\u8fd9\u4e2a\u5730\u65b9\u5c0f\u4f19\u4f34\u4eec\u8981\u6ce8\u610f\u3002<\/p><\/blockquote>\n

    \u914d\u7f6e\u5b8c\u6210\u4e4b\u540e\uff0c\u6211\u4eec\u4e0b\u8f7d\u8fd9\u4e2a\u811a\u672c\u6765\u770b\u4e0b\u5bf9\u5e94\u7684 XML \u6587\u4ef6\u662f\u4ec0\u4e48\u6837\u5b50\uff1a<\/p>\n

    <process id="demo01" name="\u6d4b\u8bd5\u6d41\u7a0b" isExecutable="true">\n  <documentation>\u6d4b\u8bd5\u6d41\u7a0b<\/documentation>\n  <startEvent id="startEvent1" flowable:formFieldValidation="true"><\/startEvent>\n  <sequenceFlow id="sid-33A78082-C2FD-48BE-8B87-99FB20F0B331" sourceRef="startEvent1" targetRef="sid-8D88DFF6-0F37-42FA-9F94-29FE30536094"><\/sequenceFlow>\n  <endEvent id="sid-A5F11956-15EA-4574-98D0-29A4E3DB5495"><\/endEvent>\n  <sequenceFlow id="sid-0698809E-0A6C-4B92-A167-AE96A8CB75F2" sourceRef="sid-8D88DFF6-0F37-42FA-9F94-29FE30536094" targetRef="sid-A5F11956-15EA-4574-98D0-29A4E3DB5495"><\/sequenceFlow>\n  <scriptTask id="sid-8D88DFF6-0F37-42FA-9F94-29FE30536094" scriptFormat="JavaScript" flowable:autoStoreVariables="false">\n    <script><![CDATA[var sum=a+b;\nexecution.setVariable("sum",sum);]]><\/script>\n  <\/scriptTask>\n<\/process><\/code><\/pre>\n
    \u5c0f\u4f19\u4f34\u4eec\u770b\u5230\uff0cscriptTask \u4e2d\u5185\u5d4c\u4e86\u4e00\u4e2a script \u8282\u70b9\uff0c\u91cc\u8fb9\u5c31\u662f\u6211\u4eec\u81ea\u5df1\u5199\u7684\u811a\u672c\u5185\u5bb9\u3002<\/p>\n
    \u597d\u5566\uff0c\u63a5\u4e0b\u6765\u5c0f\u4f19\u4f34\u4eec\u5c31\u53ef\u4ee5\u90e8\u7f72\u5e76\u542f\u52a8\u8fd9\u4e2a\u6d41\u7a0b\u4e86\uff0c\u542f\u52a8\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
    @Test\nvoid test01() {\n    Map<String, Object> variables = new HashMap<>();\n    variables.put("a", 99);\n    variables.put("b", 98);\n    ProcessInstance pi = runtimeService.startProcessInstanceByKey("demo01", variables);\n    logger.info("id:{},activityId:{}", pi.getId(), pi.getActivityId());\n}<\/code><\/pre>\n
    \u5927\u5bb6\u6ce8\u610f\u542f\u52a8\u7684\u65f6\u5019\u4f20\u9012 a \u548c b \u4e24\u4e2a\u53d8\u91cf\u3002\u8fd9\u4e2a\u6d41\u7a0b\u542f\u52a8\u4e4b\u540e\uff0c\u76f4\u63a5\u5c31\u6267\u884c\u7ed3\u675f\u4e86\uff0c\u56e0\u4e3a\u6d41\u7a0b\u5230\u8fbe scriptTask \u5e76\u4e0d\u4f1a\u505c\u6b62\u3002<\/p>\n
    \u4e0d\u8fc7\u6211\u4eec\u53ef\u4ee5\u5728 ACT_HI_VARINST<\/code> \u8868\u4e2d\u67e5\u770b\u6d41\u7a0b\u8fd0\u884c\u4fe1\u606f\uff1a<\/p>\n
    \"\"<\/p>\n
    \u53ef\u4ee5\u770b\u5230\uff0c\u76f8\u5173\u7684\u53d8\u91cf\u548c\u53d8\u91cf\u503c\u90fd\u4fdd\u5b58\u7740\u3002<\/p>\n
    2.2 Groovy \u811a\u672c<\/h3>\n
    \u770b\u61c2\u4e86 JavaScript \u811a\u672c\uff0cGroovy \u5c31\u597d\u61c2\u4e86\u3002\u4e0d\u8fc7 JavaScript \u811a\u672c\u4f30\u8ba1\u5927\u90e8\u5206\u641e Java \u7684\u5c0f\u4f19\u4f34\u90fd\u61c2\uff0c\u4f46\u662f Groovy \u53ef\u80fd\u4f1a\u6bd4\u8f83\u964c\u751f\uff0c\u6211\u7b80\u5355\u4ecb\u7ecd\u4e0b\uff1a<\/p>\n
    Groovy \u662f Apache \u65d7\u4e0b\u7684\u4e00\u95e8\u57fa\u4e8e JVM \u5e73\u53f0\u7684\u52a8\u6001\/\u654f\u6377\u7f16\u7a0b\u8bed\u8a00\uff0c\u5728\u8bed\u8a00\u7684\u8bbe\u8ba1\u4e0a\u5b83\u5438\u7eb3\u4e86 Python\u3001Ruby \u548c Smalltalk \u8bed\u8a00\u7684\u4f18\u79c0\u7279\u6027\uff0c\u8bed\u6cd5\u975e\u5e38\u7b80\u7ec3\u548c\u4f18\u7f8e\uff0c\u5f00\u53d1\u6548\u7387\u4e5f\u975e\u5e38\u9ad8\uff08\u7f16\u7a0b\u8bed\u8a00\u7684\u5f00\u53d1\u6548\u7387\u548c\u6027\u80fd\u662f\u76f8\u4e92\u77db\u76fe\u7684\uff0c\u8d8a\u9ad8\u7ea7\u7684\u7f16\u7a0b\u8bed\u8a00\u6027\u80fd\u8d8a\u5dee\uff0c\u56e0\u4e3a\u610f\u5473\u7740\u66f4\u591a\u5e95\u5c42\u7684\u5c01\u88c5\uff0c\u4e0d\u8fc7\u5f00\u53d1\u6548\u7387\u4f1a\u66f4\u9ad8\uff0c\u9700\u7ed3\u5408\u4f7f\u7528\u573a\u666f\u505a\u53d6\u820d\uff09\u3002\u5e76\u4e14\uff0cGroovy \u53ef\u4ee5\u4e0e Java \u8bed\u8a00\u65e0\u7f1d\u5bf9\u63a5\uff0c\u5728\u5199 Groovy \u7684\u65f6\u5019\u5982\u679c\u5fd8\u8bb0\u4e86\u8bed\u6cd5\u53ef\u4ee5\u76f4\u63a5\u6309 Java \u7684\u8bed\u6cd5\u7ee7\u7eed\u5199\uff0c\u4e5f\u53ef\u4ee5\u5728 Java \u4e2d\u8c03\u7528 Groovy \u811a\u672c\uff0c\u90fd\u53ef\u4ee5\u5f88\u597d\u7684\u5de5\u4f5c\uff0c\u8fd9\u6709\u6548\u7684\u964d\u4f4e\u4e86 Java \u5f00\u53d1\u8005\u5b66\u4e60 Groovy \u7684\u6210\u672c\u3002Groovy \u4e5f\u5e76\u4e0d\u4f1a\u66ff\u4ee3 Java\uff0c\u800c\u662f\u76f8\u8f85\u76f8\u6210\u3001\u4e92\u8865\u7684\u5173\u7cfb\uff0c\u5177\u4f53\u4f7f\u7528\u54ea\u95e8\u8bed\u8a00\u8fd9\u53d6\u51b3\u4e8e\u8981\u89e3\u51b3\u7684\u95ee\u9898\u548c\u4f7f\u7528\u7684\u573a\u666f\u3002<\/p><\/blockquote>\n
    \u5982\u679c\u6211\u4eec\u60f3\u8981\u5728\u6d41\u7a0b\u4e2d\u4f7f\u7528 Groovy \u811a\u672c\uff0c\u90a3\u4e48\u9996\u5148\u8bbe\u7f6e\u811a\u672c\u683c\u5f0f\u4e3a Groovy\uff1a<\/p>\n
    \"\"<\/p>\n
    \u7136\u540e\u8bbe\u7f6e\u811a\u672c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n
    \"\"<\/p>\n
    \u8fd9\u6bb5\u811a\u672c\u8868\u793a\u6d41\u7a0b\u6267\u884c\u5230\u8fd9\u4e2a\u8282\u70b9\u7684\u65f6\u5019\u8f93\u51fa\u4e00\u4e2a “hello groovy”\uff08\u5982\u679c\u4f60\u719f\u6089 Groovy \u811a\u672c\u7684\u8bdd\uff0c\u5c31\u77e5\u9053\u8fd9\u6bb5\u811a\u672c\u5176\u5b9e\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5199 Java \u4ee3\u7801\uff0c\u4e5f\u80fd\u6267\u884c\uff09\u3002<\/p>\n
    \u53e6\u5916\u8bf4\u4e00\u53e5\uff0c\u4f7f\u7528 Groovy \u811a\u672c\uff0c\u5343\u4e07\u522b\u5fd8\u4e86\u52a0 Groovy \u4f9d\u8d56\uff0c\u5982\u4e0b\uff1a<\/p>\n
    <dependency>\n    <groupId>org.codehaus.groovy<\/groupId>\n    <artifactId>groovy-all<\/artifactId>\n    <version>3.0.13<\/version>\n<\/dependency><\/code><\/pre>\n
    2.3 Juel \u811a\u672c<\/h3>\n
    Juel<\/code> \u662f Java Unified Expression Language<\/code> \u7684\u7b80\u79f0\uff0c\u5b83\u5177\u6709\u9ad8\u6027\u80fd\uff0c\u63d2\u4ef6\u5f0f\u7f13\u5b58\uff0c\u5c0f\u4f53\u79ef\uff0c\u652f\u6301\u65b9\u6cd5\u8c03\u7528\u548c\u591a\u53c2\u6570\u8c03\u7528\uff0c\u53ef\u63d2\u62d4\u7b49\u591a\u79cd\u7279\u6027\uff0c\u5b83\u662f JSP2.1 \u6807\u51c6 (JSR-245) \u4e2d\u5b9a\u4e49\u7684\u4e00\u90e8\u5206\u3002\u5c3d\u7ba1 EL \u8868\u8fbe\u5f0f\u662f\u4f34\u968f\u7740 JSP \u800c\u751f\uff0c\u4f46\u73b0\u5728\u5df2\u7ecf\u53ef\u4ee5\u5728\u975e JS P\u5e94\u7528\u4e2d\u4f7f\u7528\uff0c\u76f8\u5173\u7684 API \u653e\u5728 javax.el \u5305\u91cc\u9762\u3002<\/p><\/blockquote>\n
    \u5176\u5b9e\u50cf\u6211\u4eec\u4e4b\u524d\u5199\u7684 ${xxx}<\/code> \u8fd9\u79cd\u8868\u8fbe\u5f0f\uff0c\u5176\u5b9e\u5c31\u662f Juel \u4e86\u3002<\/p>\n
    \u6765\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u770b\u4e0b\u3002\u5047\u8bbe\u6211\u4eec\u60f3\u5728\u6d41\u7a0b\u4e2d\u4f7f\u7528 juel\uff0c\u9996\u5148\u8bbe\u7f6e\u811a\u672c\u683c\u5f0f\u4e3a juel\uff1a<\/p>\n
    \"\"<\/p>\n
    \u7136\u540e\u5c31\u53ef\u4ee5\u8bbe\u7f6e\u5177\u4f53\u7684\u811a\u672c\u5185\u5bb9\u4e86\uff0c\u5982\u4e0b\uff1a<\/p>\n
    \"\"<\/p>\n
    \u8fd9\u6bb5\u811a\u672c\u5c31\u8868\u793a\u8c03\u7528\u4e00\u4e2a\u540d\u4e3a myServiceTask2 \u7684 Bean \u4e2d\u7684 hello \u65b9\u6cd5\u3002<\/p>\n
    \u597d\u5566\uff0cFlowable \u4e2d\u652f\u6301\u7684\u4e09\u79cd\u5e38\u89c1\u811a\u672c\u4efb\u52a1\u5c31\u548c\u5c0f\u4f19\u4f34\u4eec\u8bf4\u5b8c\u5566\uff0c\u611f\u5174\u8da3\u7684\u5c0f\u4f19\u4f34\u6b22\u8fce\u7559\u8a00\u8ba8\u8bba\uff5e<\/p>\n
    https:\/\/segmentfault.com\/a\/1190000042690848<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u524d\u9762\u7684\u6587\u7ae0\u6211\u4eec\u4e00\u8d77\u73a9\u4e86 Flowable \u4e2d\u7684 ServiceTask\uff0c\u4eca\u5929\u6211\u4eec\u518d\u6765\u770b\u770b Flowable \u4e2d […]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006737","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006737"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006737\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}