自定义表单类型
使用动态表单，需要定义表单的字段以及属性，在WEB流程设计器中没有Default字段（Eclipse中有），给设计带来了一定的困难，下面介绍如何在WEB流程设计器中扩展表单。
首先在stencilset.json文件中添加扩展类型，添加的位置就是formproperty_type下，将会出现在下拉框中
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{ "id" : "formproperty_type", "name" : "Type", "name_de" : "Typ", "type" : "Choice", "value" : "", "width" : 100, "optional" : false, "items" : [ { "id" : "c1", "title" : "String", "title_de" : "String", "value" : "string", "refToView" : "" }, { "id" : "c2", "title" : "Date", "title_de" : "Date", "value" : "date", "refToView" : "" }, { "id" : "c3", "title" : "Long", "title_de" : "Long", "value" : "long", "refToView" : "" }, { "id" : "c4", "title" : "Boolean", "title_de" : "Boolean", "value" : "boolean", "refToView" : "" }, { "id" : "c5", "title" : "Enum", "title_de" : "Enum", "value" : "enum", "refToView" : "" }, { "id" : "c6", "title" : "SmartRef", "title_de" : "SmartRef", "value" : "smartref", "refToView" : "" }, { "id" : "c7", "title" : "Group", "title_de" : "Group", "value" : "group", "refToView" : "" } ] } |
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构建自定义的GroupFormType，如果只要一般的扩展，则不用对加入values
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public class GroupFormType extends AbstractFormType { ????protected Map<String, String> values; ????public GroupFormType(){} ????public GroupFormType(Map<String, String> values) ????{ ????????this.values = values; ????} ????@Override ????public String getName() ????{ ????????return ActivitiConstants.GROUP_TYPE; ????} ????@Override ????public Object convertFormValueToModelValue(String propertyValue) ????{ ????????return ????} ????@Override ????public String convertModelValueToFormValue(Object modelValue) ????{ ????????return ????} ????@Override ????public Object getInformation(String key) ????{ ????????if (ActivitiConstants.VALUES_KEY.equals(key)) ????????{ ????????????return ????????} else ????????{ ????????????return ????????} ????} } |
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扩展FormTypes，使得自定义类型能够处理FormValues
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public class CustomFormTypes extends FormTypes { ????@Override ????public AbstractFormType parseFormPropertyType(FormProperty formProperty) ????{ ????????if (ActivitiConstants.GROUP_TYPE.equals(formProperty.getType())) ????????{ ????????????Map<String, String> values = new LinkedHashMap<String, String>(); ????????????for (FormValue formValue : formProperty.getFormValues()) ????????????{ ????????????????values.put(formValue.getId(), formValue.getName()); ????????????} ????????????return ????????} else ????????{ ????????????Map<String, String> values = new LinkedHashMap<String, String>(); ????????????for (FormValue formValue : formProperty.getFormValues()) ????????????{ ????????????????values.put(formValue.getId(), formValue.getName()); ????????????} ????????????return ????????} else ????????{ ????????????return ????????} ? ????} } |
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在流程引擎参数中设置，需要注意的是，如果扩展了FormTypes,则需要把所有的类型都加入到参数中（包括自带类型），否则会报找不到类型
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<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration"> <property <bean </property> <property <list> <bean <bean <bean ????<constructor-arg </bean> <bean <bean <bean </list> </property> |
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经过处理后，最终的动态表单的返回值，可以得到FormValues的值
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0: ? { infos:? { 5ef89d50-95ff-4e33-8aa1-48df354c6c52:?"不合格品文档" } - fp:? { id:?"Excel1" name:?"不合格品文档" type:? { name:?"smartref" } - value:?null required:?false writable:?true readable:?true } - } |
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