jeesite快速开发平台(七)----代码生成原理

一、原理讲解


jeesite代码生成用的是FreeMarker模板引擎结合xml技术来实现的，定义的模板都放在resources/templates/modules/gen下




一看就知道crud就是基本的增删改查，dao是数据库操作，treetable是有关树方面的模板，其中主要的配置文件就是config.xml,该文件中定义了生成的模板，以及java类型,查询类型,字段显示类型等一些数据。

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <config>
  3. 	<!-- 生成分类 -->
  4. 	<category>
  5. 		<category value="curd" label="增删改查（单表）">
  6. 			<template>curd/controller.xml</template>
  7. 			<template>curd/service.xml</template>
  8. 			<template>category-ref:dao</template>
  9. 			<template>curd/viewForm.xml</template>
  10. 			<template>curd/viewList.xml</template>
  11. 		</category>
  12. 		<category value="curd_many" label="增删改查（一对多）">
  13. 			<template>curd/controller.xml</template>
  14. 			<template>curd/serviceMany.xml</template>
  15. 			<template>category-ref:dao</template>
  16. 			<template>curd/viewFormMany.xml</template>
  17. 			<template>curd/viewList.xml</template>
  18. 			<childTable>
  19. 				<template>category-ref:dao</template>
  20. 			</childTable>
  21. 		</category>
  22. 		<category value="dao" label="仅持久层（dao/entity/mapper）">
  23. 			<template>dao/dao.xml</template>
  24. 			<template>dao/entity.xml</template>
  25. 			<template>dao/mapper.xml</template>
  26. 		</category>
  27. 		<category value="treeTable" label="树结构表（一体）">
  28. 			<template>treetable/controller.xml</template>
  29. 			<template>treetable/service.xml</template>
  30. 			<template>treetable/dao.xml</template>
  31. 			<template>treetable/entity.xml</template>
  32. 			<template>treetable/mapper.xml</template>
  33. 			<template>treetable/viewForm.xml</template>
  34. 			<template>treetable/viewList.xml</template>
  35. 		</category>
  36. 		<category value="treeTableAndList" label="树结构表（左树右表）">
  37. 			<template>category-ref:dao</template>
  38. 		</category>
  39. 	</category>
  40. 	<!-- java类型 -->
  41. 	<javaType>
  42. 		<dict value="String" label="String"/>
  43. 		<dict value="Long" label="Long"/>
  44. 		<dict value="Integer" label="Integer"/>
  45. 		<dict value="Double" label="Double"/>
  46. 		<dict value="java.util.Date" label="Date"/>
  47. 		<dict value="com.thinkgem.jeesite.modules.sys.entity.User" label="User"/>
  48. 		<dict value="com.thinkgem.jeesite.modules.sys.entity.Office" label="Office"/>
  49. 		<dict value="com.thinkgem.jeesite.modules.sys.entity.Area" label="Area"/>
  50. 		<dict value="This" label="ThisObj" description="生成当前对象"/>
  51. 		<dict value="Custom" label="Custom" description="自定义对象，生成后手动设置"/>
  52. 	</javaType>
  53. 	<!-- 查询类型 -->
  54. 	<queryType>
  55. 		<dict value="=" label="="/>
  56. 		<dict value="!=" label="!="/>
  57. 		<dict value=">" label=">"/>
  58. 		<dict value=">=" label=">="/>
  59. 		<dict value="<" label="<"/>
  60. 		<dict value="<=" label="<="/>
  61. 		<dict value="between" label="Between"/>
  62. 		<dict value="like" label="Like"/>
  63. 		<dict value="left_like" label="Left Like"/>
  64. 		<dict value="right_like" label="Right Like"/>
  65. 	</queryType>
  66. 	<!-- 字段显示类型 -->
  67. 	<showType>
  68. 		<dict value="input" label="单行文本"/>
  69. 		<dict value="textarea" label="多行文本"/>
  70. 		<dict value="select" label="下拉选项"/>
  71. 		<dict value="radiobox" label="单选按钮"/>
  72. 		<dict value="checkbox" label="复选框"/>
  73. 		<dict value="dateselect" label="日期选择"/>
  74. 		<dict value="userselect" label="人员选择"/>
  75. 		<dict value="officeselect" label="部门选择"/>
  76. 		<dict value="areaselect" label="区域选择"/>
  77. 		<dict value="treeselect" label="树选择控件"/>
  78. 		<dict value="fileselect" label="文件上传选择"/>
  79. 	</showType>
  80. </config>

其中 

  1. <childTable>
  2. 	<template>category-ref:dao</template>
  3. </childTable>

定义了子表，初看jeesite的代码生成，有个困惑的地方就是,一般通过FreeMarker进行代码生成定义的模板都是ftl格式的，而这里却是xml，什么鬼，难道这里不是用FreeMarker进行生成的??我们先来看下xml文件中的内容就清楚了:

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <template>
  3. 	<name>controller</name>
  4. 	<filePath>src/main/java/${packageName}/${moduleName}/web/${subModuleName}</filePath>
  5. 	<fileName>${ClassName}Controller.java</fileName>
  6. 	<content><![CDATA[
  7. /**
  8.  * Copyright &copy; 2012-2016 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
  9.  */
  10. package ${packageName}.${moduleName}.web<#if subModuleName != "">.${subModuleName}</#if>;
  11.  
  12. import javax.servlet.http.HttpServletRequest;
  13. import javax.servlet.http.HttpServletResponse;
  14.  
  15. import org.apache.shiro.authz.annotation.RequiresPermissions;
  16. import org.springframework.beans.factory.annotation.Autowired;
  17. import org.springframework.stereotype.Controller;
  18. import org.springframework.ui.Model;
  19. import org.springframework.web.bind.annotation.ModelAttribute;
  20. import org.springframework.web.bind.annotation.RequestMapping;
  21. import org.springframework.web.bind.annotation.RequestParam;
  22. import org.springframework.web.servlet.mvc.support.RedirectAttributes;
  23.  
  24. import com.thinkgem.jeesite.common.config.Global;
  25. import com.thinkgem.jeesite.common.persistence.Page;
  26. import com.thinkgem.jeesite.common.web.BaseController;
  27. import com.thinkgem.jeesite.common.utils.StringUtils;
  28. import ${packageName}.${moduleName}.entity<#if subModuleName != "">.${subModuleName}</#if>.${ClassName};
  29. import ${packageName}.${moduleName}.service<#if subModuleName != "">.${subModuleName}</#if>.${ClassName}Service;
  30.  
  31. /**
  32.  * ${functionName}Controller
  33.  * @author ${functionAuthor}
  34.  * @version ${functionVersion}
  35.  */
  36. @Controller
  37. @RequestMapping(value = "${r"${adminPath}"}/${urlPrefix}")
  38. public class ${ClassName}Controller extends BaseController {
  39.  
  40. 	@Autowired
  41. 	private ${ClassName}Service ${className}Service;
  42. 	
  43. 	@ModelAttribute
  44. 	public ${ClassName} get(@RequestParam(required=false) String id) {
  45. 		${ClassName} entity = null;
  46. 		if (StringUtils.isNotBlank(id)){
  47. 			entity = ${className}Service.get(id);
  48. 		}
  49. 		if (entity == null){
  50. 			entity = new ${ClassName}();
  51. 		}
  52. 		return entity;
  53. 	}
  54. 	
  55. 	@RequiresPermissions("${permissionPrefix}:view")
  56. 	@RequestMapping(value = {"list", ""})
  57. 	public String list(${ClassName} ${className}, HttpServletRequest request, HttpServletResponse response, Model model) {
  58. 		Page<${ClassName}> page = ${className}Service.findPage(new Page<${ClassName}>(request, response), ${className}); 
  59. 		model.addAttribute("page", page);
  60. 		return "${lastPackageName}/${viewPrefix}List";
  61. 	}
  62.  
  63. 	@RequiresPermissions("${permissionPrefix}:view")
  64. 	@RequestMapping(value = "form")
  65. 	public String form(${ClassName} ${className}, Model model) {
  66. 		model.addAttribute("${className}", ${className});
  67. 		return "${lastPackageName}/${viewPrefix}Form";
  68. 	}
  69.  
  70. 	@RequiresPermissions("${permissionPrefix}:edit")
  71. 	@RequestMapping(value = "save")
  72. 	public String save(${ClassName} ${className}, Model model, RedirectAttributes redirectAttributes) {
  73. 		if (!beanValidator(model, ${className})){
  74. 			return form(${className}, model);
  75. 		}
  76. 		${className}Service.save(${className});
  77. 		addMessage(redirectAttributes, "保存${functionNameSimple}成功");
  78. 		return "redirect:"+Global.getAdminPath()+"/${viewPrefix}/?repage";
  79. 	}
  80. 	
  81. 	@RequiresPermissions("${permissionPrefix}:edit")
  82. 	@RequestMapping(value = "delete")
  83. 	public String delete(${ClassName} ${className}, RedirectAttributes redirectAttributes) {
  84. 		${className}Service.delete(${className});
  85. 		addMessage(redirectAttributes, "删除${functionNameSimple}成功");
  86. 		return "redirect:"+Global.getAdminPath()+"/${viewPrefix}/?repage";
  87. 	}
  88.  
  89. }]]>
  90. 	</content>
  91. </template>

其中的xml格式为: 

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <template>
  3. 	<name>controller</name>
  4. 	<filePath>src/main/java/${packageName}/${moduleName}/web/${subModuleName}</filePath>
  5. 	<fileName>${ClassName}Controller.java</fileName>
  6. 	<content><![CDATA[]]>
  7. 	</content>
  8. </template>

发现其中的奥秘没，他把模板内容都放在了content标签的CDATA[]区。而且config.xml有相对应的bean，用来实现xml转对象:


  1. /**
  2.  * 生成方案Entity
  3.  * @author ThinkGem
  4.  * @version 2013-10-15
  5.  */
  6. @XmlRootElement(name="config")
  7. public class GenConfig implements Serializable {
  8. 	
  9. 	private static final long serialVersionUID = 1L;
  10. 	private List<GenCategory> categoryList;	// 代码模板分类
  11. 	private List<Dict> javaTypeList;		// Java类型
  12. 	private List<Dict> queryTypeList;		// 查询类型
  13. 	private List<Dict> showTypeList;		// 显示类型
  14.  
  15. 	public GenConfig() {
  16. 		super();
  17. 	}
  18.  
  19. 	@XmlElementWrapper(name = "category")
  20. 	@XmlElement(name = "category")
  21. 	public List<GenCategory> getCategoryList() {
  22. 		return categoryList;
  23. 	}
  24.  
  25. 	public void setCategoryList(List<GenCategory> categoryList) {
  26. 		this.categoryList = categoryList;
  27. 	}
  28.  
  29. 	@XmlElementWrapper(name = "javaType")
  30. 	@XmlElement(name = "dict")
  31. 	public List<Dict> getJavaTypeList() {
  32. 		return javaTypeList;
  33. 	}
  34.  
  35. 	public void setJavaTypeList(List<Dict> javaTypeList) {
  36. 		this.javaTypeList = javaTypeList;
  37. 	}
  38.  
  39. 	@XmlElementWrapper(name = "queryType")
  40. 	@XmlElement(name = "dict")
  41. 	public List<Dict> getQueryTypeList() {
  42. 		return queryTypeList;
  43. 	}
  44.  
  45. 	public void setQueryTypeList(List<Dict> queryTypeList) {
  46. 		this.queryTypeList = queryTypeList;
  47. 	}
  48.  
  49. 	@XmlElementWrapper(name = "showType")
  50. 	@XmlElement(name = "dict")
  51. 	public List<Dict> getShowTypeList() {
  52. 		return showTypeList;
  53. 	}
  54.  
  55. 	public void setShowTypeList(List<Dict> showTypeList) {
  56. 		this.showTypeList = showTypeList;
  57. 	}
  58. 	
  59. }

其中的 

  1. private List<GenCategory> categoryList;	        // 代码模板分类
  2. private List<Dict> javaTypeList;		// Java类型
  3. private List<Dict> queryTypeList;		// 查询类型
  4. private List<Dict> showTypeList;		// 显示类型

对应的就是xml中预先定义好的 

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <config>
  3. 	<!-- 生成分类 -->
  4. 	<category>
  5. 		<category value="curd" label="增删改查（单表）">
  6. 			<template>curd/controller.xml</template>
  7. 		    ....
  8. 		</category>
  9. 		<category value="curd_many" label="增删改查（一对多）">
  10. 			<template>curd/controller.xml</template>
  11. 			....
  12. 			<childTable>
  13. 				<template>category-ref:dao</template>
  14. 			</childTable>
  15. 		</category>
  16. 		<category value="dao" label="仅持久层（dao/entity/mapper）">
  17. 			<template>dao/dao.xml</template>
  18. 			....
  19. 		</category>
  20. 		<category value="treeTable" label="树结构表（一体）">
  21. 			<template>treetable/controller.xml</template>
  22. 			....
  23. 		</category>
  24. 		<category value="treeTableAndList" label="树结构表（左树右表）">
  25. 			<template>category-ref:dao</template>
  26. 		</category>
  27. 	</category>
  28. 	<!-- java类型 -->
  29. 	<javaType>
  30. 		<dict value="String" label="String"/>
  31. 		....
  32. 	</javaType>
  33. 	<!-- 查询类型 -->
  34. 	<queryType>
  35. 		<dict value="=" label="="/>
  36. 		....
  37. 	</queryType>
  38. 	<!-- 字段显示类型 -->
  39. 	<showType>
  40. 		<dict value="input" label="单行文本"/>
  41. 		<dict value="textarea" label="多行文本"/>
  42. 		....
  43. 	</showType>
  44. </config>


其中的代码模板分类


通过@XmlElement(name = "category")引用了GenCategory类，其中定义了主子模板

  1. /**
  2.  * 生成方案Entity
  3.  * @author ThinkGem
  4.  * @version 2013-10-15
  5.  */
  6. @XmlRootElement(name="category")
  7. public class GenCategory extends Dict {
  8. 	
  9. 	private static final long serialVersionUID = 1L;
  10. 	private List<String> template;			// 主表模板
  11. 	private List<String> childTableTemplate;// 子表模板
  12. 	
  13. 	public static String CATEGORY_REF = "category-ref:";
  14.  
  15. 	public GenCategory() {
  16. 		super();
  17. 	}
  18.  
  19. 	@XmlElement(name = "template")
  20. 	public List<String> getTemplate() {
  21. 		return template;
  22. 	}
  23.  
  24. 	public void setTemplate(List<String> template) {
  25. 		this.template = template;
  26. 	}
  27. 	
  28. 	@XmlElementWrapper(name = "childTable")
  29. 	@XmlElement(name = "template")
  30. 	public List<String> getChildTableTemplate() {
  31. 		return childTableTemplate;
  32. 	}
  33.  
  34. 	public void setChildTableTemplate(List<String> childTableTemplate) {
  35. 		this.childTableTemplate = childTableTemplate;
  36. 	}
  37. 	
  38. }

这两个主子其实对应的就是




在GenUtils中通过getConfig()方法可获取转换成bean的对象




而其中的数据就是在配置业务表是初始化的一些数据,比如当我们选择某一张表时，然后点击下一步




就会调用GenTableController中的form方法，把一些配置参数设置进去



然后在genTableForm.jsp页面进行渲染

  1. <%@ page contentType="text/html;charset=UTF-8" %>
  2. <%@ include file="/WEB-INF/views/include/taglib.jsp"%>
  3. <html>
  4. <head>
  5. 	<title>业务表管理</title>
  6. 	<meta name="decorator" content="default"/>
  7. 	<script type="text/javascript">
  8. 		$(document).ready(function() {
  9. 			$("#comments").focus();
  10. 			$("#inputForm").validate({
  11. 				submitHandler: function(form){
  12. 					loading('正在提交，请稍等...');
  13. 					$("input[type=checkbox]").each(function(){
  14. 						$(this).after("<input type=\"hidden\" name=\""+$(this).attr("name")+"\" value=\""
  15. 								+($(this).attr("checked")?"1":"0")+"\"/>");
  16. 						$(this).attr("name", "_"+$(this).attr("name"));
  17. 					});
  18. 					form.submit();
  19. 				},
  20. 				errorContainer: "#messageBox",
  21. 				errorPlacement: function(error, element) {
  22. 					$("#messageBox").text("输入有误，请先更正。");
  23. 					if (element.is(":checkbox")||element.is(":radio")||element.parent().is(".input-append")){
  24. 						error.appendTo(element.parent().parent());
  25. 					} else {
  26. 						error.insertAfter(element);
  27. 					}
  28. 				}
  29. 			});
  30. 		});
  31. 	</script>
  32. </head>
  33. <body>
  34. 	<ul class="nav nav-tabs">
  35. 		<li><a href="${ctx}/gen/genTable/">业务表列表</a></li>
  36. 		<li class="active"><a href="${ctx}/gen/genTable/form?id=${genTable.id}&name=${genTable.name}">业务表<shiro:hasPermission name="gen:genTable:edit">${not empty genTable.id?'修改':'添加'}</shiro:hasPermission><shiro:lacksPermission name="gen:genTable:edit">查看</shiro:lacksPermission></a></li>
  37. 	</ul>
  38. 	<c:choose>
  39. 		<c:when test="${empty genTable.name}">
  40. 			<form:form id="inputForm" modelAttribute="genTable" action="${ctx}/gen/genTable/form" method="post" class="form-horizontal">
  41. 				<form:hidden path="id"/>
  42. 				<sys:message content="${message}"/>
  43. 				<br/>
  44. 				<div class="control-group">
  45. 					<label class="control-label">表名:</label>
  46. 					<div class="controls">
  47. 						<form:select path="name" class="input-xxlarge">
  48. 							<form:options items="${tableList}" itemLabel="nameAndComments" itemValue="name" htmlEscape="false"/>
  49. 						</form:select>
  50. 					</div>
  51. 					<div class="form-actions">
  52. 						<input id="btnSubmit" class="btn btn-primary" type="submit" value="下一步"/> 
  53. 						<input id="btnCancel" class="btn" type="button" value="返 回" onclick="history.go(-1)"/>
  54. 					</div>
  55. 				</div>
  56. 			</form:form>
  57. 		</c:when>
  58. 		<c:otherwise>
  59. 			<form:form id="inputForm" modelAttribute="genTable" action="${ctx}/gen/genTable/save" method="post" class="form-horizontal">
  60. 				<form:hidden path="id"/>
  61. 				<sys:message content="${message}"/>
  62. 				<fieldset>
  63. 					<legend>基本信息</legend>
  64. 					<div class="control-group">
  65. 						<label class="control-label">表名:</label>
  66. 						<div class="controls">
  67. 							<form:input path="name" htmlEscape="false" maxlength="200" class="required" readonly="true"/>
  68. 						</div>
  69. 					</div>
  70. 					<div class="control-group">
  71. 						<label class="control-label">说明:</label>
  72. 						<div class="controls">
  73. 							<form:input path="comments" htmlEscape="false" maxlength="200" class="required"/>
  74. 						</div>
  75. 					</div>
  76. 					<div class="control-group">
  77. 						<label class="control-label">类名:</label>
  78. 						<div class="controls">
  79. 							<form:input path="className" htmlEscape="false" maxlength="200" class="required"/>
  80. 						</div>
  81. 					</div>
  82. 					<div class="control-group">
  83. 						<label class="control-label">父表表名:</label>
  84. 						<div class="controls">
  85. 							<form:select path="parentTable" cssClass="input-xlarge">
  86. 								<form:option value="">无</form:option>
  87. 								<form:options items="${tableList}" itemLabel="nameAndComments" itemValue="name" htmlEscape="false"/>
  88. 							</form:select>
  89. 							 当前表外键：
  90. 							<form:select path="parentTableFk" cssClass="input-xlarge">
  91. 								<form:option value="">无</form:option>
  92. 								<form:options items="${genTable.columnList}" itemLabel="nameAndComments" itemValue="name" htmlEscape="false"/>
  93. 							</form:select>
  94. 							<span class="help-inline">如果有父表，请指定父表表名和外键</span>
  95. 						</div>
  96. 					</div>
  97. 					<div class="control-group hide">
  98. 						<label class="control-label">备注:</label>
  99. 						<div class="controls">
  100. 							<form:textarea path="remarks" htmlEscape="false" rows="4" maxlength="200" class="input-xxlarge"/>
  101. 						</div>
  102. 					</div>
  103. 					<legend>字段列表</legend>
  104. 					<div class="control-group">
  105. 						<table id="contentTable" class="table table-striped table-bordered table-condensed">
  106. 							<thead><tr>
  107. 								<th title="数据库字段名">列名</th>
  108. 								<th title="默认读取数据库字段备注">说明</th>
  109. 								<th title="数据库中设置的字段类型及长度">物理类型</th>
  110. 								<th title="实体对象的属性字段类型">Java类型</th>
  111. 								<th title="实体对象的属性字段（对象名.属性名|属性名2|属性名3，例如：用户user.id|name|loginName，属性名2和属性名3为Join时关联查询的字段）">Java属性名称 <i class="icon-question-sign"></i></th>
  112. 								<th title="是否是数据库主键">主键</th><th title="字段是否可为空值，不可为空字段自动进行空值验证">可空</th><th title="选中后该字段被加入到insert语句里">插入</th>
  113. 								<th title="选中后该字段被加入到update语句里">编辑</th><th title="选中后该字段被加入到查询列表里">列表</th>
  114. 								<th title="选中后该字段被加入到查询条件里">查询</th><th title="该字段为查询字段时的查询匹配放松">查询匹配方式</th>
  115. 								<th title="字段在表单中显示的类型">显示表单类型</th><th title="显示表单类型设置为“下拉框、复选框、点选框”时，需设置字典的类型">字典类型</th><th>排序</th></tr></thead>
  116. 							<tbody>
  117. 							<c:forEach items="${genTable.columnList}" var="column" varStatus="vs">
  118. 								<tr${column.delFlag eq '1'?' class="error" title="已删除的列，保存之后消失！"':''}>
  119. 									<td nowrap>
  120. 										<input type="hidden" name="columnList[${vs.index}].id" value="${column.id}"/>
  121. 										<input type="hidden" name="columnList[${vs.index}].delFlag" value="${column.delFlag}"/>
  122. 										<input type="hidden" name="columnList[${vs.index}].genTable.id" value="${column.genTable.id}"/>
  123. 										<input type="hidden" name="columnList[${vs.index}].name" value="${column.name}"/>${column.name}
  124. 									</td>
  125. 									<td>
  126. 										<input type="text" name="columnList[${vs.index}].comments" value="${column.comments}" maxlength="200" class="required" style="width:100px;"/>
  127. 									</td>
  128. 									<td nowrap>
  129. 										<input type="hidden" name="columnList[${vs.index}].jdbcType" value="${column.jdbcType}"/>${column.jdbcType}
  130. 									</td>
  131. 									<td>
  132. 										<select name="columnList[${vs.index}].javaType" class="required input-mini" style="width:85px;*width:75px">
  133. 											<c:forEach items="${config.javaTypeList}" var="dict">
  134. 												<option value="${dict.value}" ${dict.value==column.javaType?'selected':''} title="${dict.description}">${dict.label}</option>
  135. 											</c:forEach>
  136. 										</select>
  137. 									</td>
  138. 									<td>
  139. 										<input type="text" name="columnList[${vs.index}].javaField" value="${column.javaField}" maxlength="200" class="required input-small"/>
  140. 									</td>
  141. 									<td>
  142. 										<input type="checkbox" name="columnList[${vs.index}].isPk" value="1" ${column.isPk eq '1' ? 'checked' : ''}/>
  143. 									</td>
  144. 									<td>
  145. 										<input type="checkbox" name="columnList[${vs.index}].isNull" value="1" ${column.isNull eq '1' ? 'checked' : ''}/>
  146. 									</td>
  147. 									<td>
  148. 										<input type="checkbox" name="columnList[${vs.index}].isInsert" value="1" ${column.isInsert eq '1' ? 'checked' : ''}/>
  149. 									</td>
  150. 									<td>
  151. 										<input type="checkbox" name="columnList[${vs.index}].isEdit" value="1" ${column.isEdit eq '1' ? 'checked' : ''}/>
  152. 									</td>
  153. 									<td>
  154. 										<input type="checkbox" name="columnList[${vs.index}].isList" value="1" ${column.isList eq '1' ? 'checked' : ''}/>
  155. 									</td>
  156. 									<td>
  157. 										<input type="checkbox" name="columnList[${vs.index}].isQuery" value="1" ${column.isQuery eq '1' ? 'checked' : ''}/>
  158. 									</td>
  159. 									<td>
  160. 										<select name="columnList[${vs.index}].queryType" class="required input-mini">
  161. 											<c:forEach items="${config.queryTypeList}" var="dict">
  162. 												<option value="${fns:escapeHtml(dict.value)}" ${fns:escapeHtml(dict.value)==column.queryType?'selected':''} title="${dict.description}">${fns:escapeHtml(dict.label)}</option>
  163. 											</c:forEach>
  164. 										</select>
  165. 									</td>
  166. 									<td>
  167. 										<select name="columnList[${vs.index}].showType" class="required" style="width:100px;">
  168. 											<c:forEach items="${config.showTypeList}" var="dict">
  169. 												<option value="${dict.value}" ${dict.value==column.showType?'selected':''} title="${dict.description}">${dict.label}</option>
  170. 											</c:forEach>
  171. 										</select>
  172. 									</td>
  173. 									<td>
  174. 										<input type="text" name="columnList[${vs.index}].dictType" value="${column.dictType}" maxlength="200" class="input-mini"/>
  175. 									</td>
  176. 									<td>
  177. 										<input type="text" name="columnList[${vs.index}].sort" value="${column.sort}" maxlength="200" class="required input-min digits"/>
  178. 									</td>
  179. 								</tr>
  180. 							</c:forEach>
  181. 							</tbody>
  182. 						</table>
  183. 					</div>
  184. 				</fieldset>
  185. 				<div class="form-actions">
  186. 					<shiro:hasPermission name="gen:genTable:edit"><input id="btnSubmit" class="btn btn-primary" type="submit" value="保 存"/> </shiro:hasPermission>
  187. 					<input id="btnCancel" class="btn" type="button" value="返 回" onclick="history.go(-1)"/>
  188. 				</div>
  189. 			</form:form>
  190. 		</c:otherwise>
  191. 	</c:choose>
  192. </body>
  193. </html>

注意其中的name属性 

name="columnList[${vs.index}].xxx"


在GenTable中是用list来装的


所以在spring mvc数据绑定的时候可以通过下标的形式来传值




业务表配置好之后，就是生成代码，新建生成方案配置，然后输入一些必须的信息




点击保存并生成代码，会调用GenSchemeController中的save()方法，传入一些参数




然后调用genSchemeService.save()方法进行生成




如果是1的话就生成代码




generateCode方法如下:

  1. 	private String generateCode(GenScheme genScheme){
  2.  
  3. 		StringBuilder result = new StringBuilder();
  4. 		
  5. 		// 查询主表及字段列
  6. 		GenTable genTable = genTableDao.get(genScheme.getGenTable().getId());
  7. 		genTable.setColumnList(genTableColumnDao.findList(new GenTableColumn(new GenTable(genTable.getId()))));
  8. 		
  9. 		// 获取所有代码模板
  10. 		GenConfig config = GenUtils.getConfig();
  11. 		
  12. 		// 获取模板列表
  13. 		List<GenTemplate> templateList = GenUtils.getTemplateList(config, genScheme.getCategory(), false); //获取所有不包含childTableTemplateList的数据
  14. 		List<GenTemplate> childTableTemplateList = GenUtils.getTemplateList(config, genScheme.getCategory(), true);
  15. 		
  16. 		// 如果有子表模板，则需要获取子表列表
  17. 		if (childTableTemplateList.size() > 0){
  18. 			GenTable parentTable = new GenTable();
  19. 			parentTable.setParentTable(genTable.getName());
  20. 			genTable.setChildList(genTableDao.findList(parentTable));
  21. 		}
  22. 		
  23. 		// 生成子表模板代码
  24. 		for (GenTable childTable : genTable.getChildList()){
  25. 			childTable.setParent(genTable);
  26. 			childTable.setColumnList(genTableColumnDao.findList(new GenTableColumn(new GenTable(childTable.getId()))));
  27. 			genScheme.setGenTable(childTable);
  28. 			Map<String, Object> childTableModel = GenUtils.getDataModel(genScheme);
  29. 			for (GenTemplate tpl : childTableTemplateList){
  30. 				result.append(GenUtils.generateToFile(tpl, childTableModel, genScheme.getReplaceFile()));
  31. 			}
  32. 		}
  33. 		
  34. 		// 生成主表模板代码
  35. 		genScheme.setGenTable(genTable);
  36. 		Map<String, Object> model = GenUtils.getDataModel(genScheme);
  37. 		for (GenTemplate tpl : templateList){
  38. 			result.append(GenUtils.generateToFile(tpl, model, genScheme.getReplaceFile()));
  39. 		}
  40. 		return result.toString();
  41. 	}

该方法主要是做一些，获取模板，然后进行数据绑定等一些工作。其中的

  1. // 获取模板列表
  2. List<GenTemplate> templateList = GenUtils.getTemplateList(config, genScheme.getCategory(), false); //获取所有不包含childTableTemplateList的数据
  3. List<GenTemplate> childTableTemplateList = GenUtils.getTemplateList(config, genScheme.getCategory(), true);

getTemplateList方法为

  1. 	/**
  2. 	 * 根据分类获取模板列表
  3. 	 * @param config
  4. 	 * @param category
  5. 	 * @param isChildTable 是否是子表
  6. 	 * @return
  7. 	 */
  8. 	public static List<GenTemplate> getTemplateList(GenConfig config, String category, boolean isChildTable){
  9. 		List<GenTemplate> templateList = Lists.newArrayList();
  10. 		if (config !=null && config.getCategoryList() != null && category !=  null){
  11. 			for (GenCategory e : config.getCategoryList()){
  12. 				if (category.equals(e.getValue())){
  13. 					List<String> list = null;
  14. 					if (!isChildTable){
  15. 						list = e.getTemplate();
  16. 					}else{
  17. 						list = e.getChildTableTemplate();
  18. 					}
  19. 					if (list != null){
  20. 						for (String s : list){
  21. 							if (StringUtils.startsWith(s, GenCategory.CATEGORY_REF)){
  22. 								templateList.addAll(getTemplateList(config, StringUtils.replace(s, GenCategory.CATEGORY_REF, ""), false));
  23. 							}else{
  24. 								GenTemplate template = fileToObject(s, GenTemplate.class);
  25. 								if (template != null){
  26. 									templateList.add(template);
  27. 								}
  28. 							}
  29. 						}
  30. 					}
  31. 					break;
  32. 				}
  33. 			}
  34. 		}
  35. 		return templateList;
  36. 	}

通过标志位来获取 

  1. if (!isChildTable){
  2. 	list = e.getTemplate();
  3. }else{
  4. 	list = e.getChildTableTemplate();
  5. }
主表，子表模板，生成文件的方法是GenUtils.generateToFile(tpl, model, genScheme.getReplaceFile()) 

  1. 	/**
  2. 	 * 生成到文件
  3. 	 * @param tpl
  4. 	 * @param model
  5. 	 * @param isReplaceFile
  6. 	 * @return
  7. 	 */
  8. 	public static String generateToFile(GenTemplate tpl, Map<String, Object> model, boolean isReplaceFile){
  9. 		// 获取生成文件
  10. 		String fileName = Global.getProjectPath() + File.separator 
  11. 				+ StringUtils.replaceEach(FreeMarkers.renderString(tpl.getFilePath() + "/", model), 
  12. 						new String[]{"//", "/", "."}, new String[]{File.separator, File.separator, File.separator})
  13. 				+ FreeMarkers.renderString(tpl.getFileName(), model);
  14. 		logger.debug(" fileName === " + fileName);
  15.  
  16. 		// 获取生成文件内容
  17. 		String content = FreeMarkers.renderString(StringUtils.trimToEmpty(tpl.getContent()), model);
  18. 		logger.debug(" content === \r\n" + content);
  19. 		
  20. 		// 如果选择替换文件，则删除原文件
  21. 		if (isReplaceFile){
  22. 			FileUtils.deleteFile(fileName);
  23. 		}
  24. 		
  25. 		// 创建并写入文件
  26. 		if (FileUtils.createFile(fileName)){
  27. 			FileUtils.writeToFile(fileName, content, true);
  28. 			logger.debug(" file create === " + fileName);
  29. 			return "生成成功："+fileName+"<br/>";
  30. 		}else{
  31. 			logger.debug(" file extents === " + fileName);
  32. 			return "文件已存在："+fileName+"<br/>";
  33. 		}
  34. 	}

生成成功之后，会有如下提示:




posted @ 2018-11-20 16:58  星朝  阅读(2400)  评论(0)  编辑  收藏  举报