jeesite快速开发平台(七)----代码生成原理

以你之姓@ 2022-05-31 08:35 237阅读 0赞

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

![20180213194838258][]

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。

<?xml version="1.0" encoding="utf-8"?>
    <config>
    	
    	<category>
    		<category value="curd" label="增删改查（单表）">
    			<template>curd/controller.xml</template>
    			<template>curd/service.xml</template>
    			<template>category-ref:dao</template>
    			<template>curd/viewForm.xml</template>
    			<template>curd/viewList.xml</template>
    		</category>
    		<category value="curd_many" label="增删改查（一对多）">
    			<template>curd/controller.xml</template>
    			<template>curd/serviceMany.xml</template>
    			<template>category-ref:dao</template>
    			<template>curd/viewFormMany.xml</template>
    			<template>curd/viewList.xml</template>
    			<childTable>
    				<template>category-ref:dao</template>
    			</childTable>
    		</category>
    		<category value="dao" label="仅持久层（dao/entity/mapper）">
    			<template>dao/dao.xml</template>
    			<template>dao/entity.xml</template>
    			<template>dao/mapper.xml</template>
    		</category>
    		<category value="treeTable" label="树结构表（一体）">
    			<template>treetable/controller.xml</template>
    			<template>treetable/service.xml</template>
    			<template>treetable/dao.xml</template>
    			<template>treetable/entity.xml</template>
    			<template>treetable/mapper.xml</template>
    			<template>treetable/viewForm.xml</template>
    			<template>treetable/viewList.xml</template>
    		</category>
    		<category value="treeTableAndList" label="树结构表（左树右表）">
    			<template>category-ref:dao</template>
    		</category>
    	</category>
    	
    	<javaType>
    		<dict value="String" label="String"/>
    		<dict value="Long" label="Long"/>
    		<dict value="Integer" label="Integer"/>
    		<dict value="Double" label="Double"/>
    		<dict value="java.util.Date" label="Date"/>
    		<dict value="com.thinkgem.jeesite.modules.sys.entity.User" label="User"/>
    		<dict value="com.thinkgem.jeesite.modules.sys.entity.Office" label="Office"/>
    		<dict value="com.thinkgem.jeesite.modules.sys.entity.Area" label="Area"/>
    		<dict value="This" label="ThisObj" description="生成当前对象"/>
    		<dict value="Custom" label="Custom" description="自定义对象，生成后手动设置"/>
    	</javaType>
    	
    	<queryType>
    		<dict value="=" label="="/>
    		<dict value="!=" label="!="/>
    		<dict value=">" label=">"/>
    		<dict value=">=" label=">="/>
    		<dict value="<" label="<"/>
    		<dict value="<=" label="<="/>
    		<dict value="between" label="Between"/>
    		<dict value="like" label="Like"/>
    		<dict value="left_like" label="Left Like"/>
    		<dict value="right_like" label="Right Like"/>
    	</queryType>
    	
    	<showType>
    		<dict value="input" label="单行文本"/>
    		<dict value="textarea" label="多行文本"/>
    		<dict value="select" label="下拉选项"/>
    		<dict value="radiobox" label="单选按钮"/>
    		<dict value="checkbox" label="复选框"/>
    		<dict value="dateselect" label="日期选择"/>
    		<dict value="userselect" label="人员选择"/>
    		<dict value="officeselect" label="部门选择"/>
    		<dict value="areaselect" label="区域选择"/>
    		<dict value="treeselect" label="树选择控件"/>
    		<dict value="fileselect" label="文件上传选择"/>
    	</showType>
    </config>

其中

<childTable>
    	<template>category-ref:dao</template>
    </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:

<?xml version="1.0" encoding="utf-8"?>
    <template>
    	<name>controller</name>
    	<filePath>src/main/java/${packageName}/${moduleName}/web/${subModuleName}</filePath>
    	<fileName>${ClassName}Controller.java</fileName>
    	<content><![CDATA[
    /**
     * Copyright © 2012-2016 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
     */
    package ${packageName}.${moduleName}.web<#if subModuleName != "">.${subModuleName}</#if>;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.shiro.authz.annotation.RequiresPermissions;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.servlet.mvc.support.RedirectAttributes;
    
    import com.thinkgem.jeesite.common.config.Global;
    import com.thinkgem.jeesite.common.persistence.Page;
    import com.thinkgem.jeesite.common.web.BaseController;
    import com.thinkgem.jeesite.common.utils.StringUtils;
    import ${packageName}.${moduleName}.entity<#if subModuleName != "">.${subModuleName}</#if>.${ClassName};
    import ${packageName}.${moduleName}.service<#if subModuleName != "">.${subModuleName}</#if>.${ClassName}Service;
    
    /**
     * ${functionName}Controller
     * @author ${functionAuthor}
     * @version ${functionVersion}
     */
    @Controller
    @RequestMapping(value = "${r"${adminPath}"}/${urlPrefix}")
    public class ${ClassName}Controller extends BaseController {
    
    	@Autowired
    	private ${ClassName}Service ${className}Service;
    	
    	@ModelAttribute
    	public ${ClassName} get(@RequestParam(required=false) String id) {
    		${ClassName} entity = null;
    		if (StringUtils.isNotBlank(id)){
    			entity = ${className}Service.get(id);
    		}
    		if (entity == null){
    			entity = new ${ClassName}();
    		}
    		return entity;
    	}
    	
    	@RequiresPermissions("${permissionPrefix}:view")
    	@RequestMapping(value = {"list", ""})
    	public String list(${ClassName} ${className}, HttpServletRequest request, HttpServletResponse response, Model model) {
    		Page<${ClassName}> page = ${className}Service.findPage(new Page<${ClassName}>(request, response), ${className}); 
    		model.addAttribute("page", page);
    		return "${lastPackageName}/${viewPrefix}List";
    	}
    
    	@RequiresPermissions("${permissionPrefix}:view")
    	@RequestMapping(value = "form")
    	public String form(${ClassName} ${className}, Model model) {
    		model.addAttribute("${className}", ${className});
    		return "${lastPackageName}/${viewPrefix}Form";
    	}
    
    	@RequiresPermissions("${permissionPrefix}:edit")
    	@RequestMapping(value = "save")
    	public String save(${ClassName} ${className}, Model model, RedirectAttributes redirectAttributes) {
    		if (!beanValidator(model, ${className})){
    			return form(${className}, model);
    		}
    		${className}Service.save(${className});
    		addMessage(redirectAttributes, "保存${functionNameSimple}成功");
    		return "redirect:"+Global.getAdminPath()+"/${viewPrefix}/?repage";
    	}
    	
    	@RequiresPermissions("${permissionPrefix}:edit")
    	@RequestMapping(value = "delete")
    	public String delete(${ClassName} ${className}, RedirectAttributes redirectAttributes) {
    		${className}Service.delete(${className});
    		addMessage(redirectAttributes, "删除${functionNameSimple}成功");
    		return "redirect:"+Global.getAdminPath()+"/${viewPrefix}/?repage";
    	}
    
    }]]>
    	</content>
    </template>

其中的xml格式为:

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:

/**
     * 生成方案Entity
     * @author ThinkGem
     * @version 2013-10-15
     */
    @XmlRootElement(name="config")
    public class GenConfig implements Serializable {
    	
    	private static final long serialVersionUID = 1L;
    	private List<GenCategory> categoryList;	// 代码模板分类
    	private List<Dict> javaTypeList;		// Java类型
    	private List<Dict> queryTypeList;		// 查询类型
    	private List<Dict> showTypeList;		// 显示类型
    
    	public GenConfig() {
    		super();
    	}
    
    	@XmlElementWrapper(name = "category")
    	@XmlElement(name = "category")
    	public List<GenCategory> getCategoryList() {
    		return categoryList;
    	}
    
    	public void setCategoryList(List<GenCategory> categoryList) {
    		this.categoryList = categoryList;
    	}
    
    	@XmlElementWrapper(name = "javaType")
    	@XmlElement(name = "dict")
    	public List<Dict> getJavaTypeList() {
    		return javaTypeList;
    	}
    
    	public void setJavaTypeList(List<Dict> javaTypeList) {
    		this.javaTypeList = javaTypeList;
    	}
    
    	@XmlElementWrapper(name = "queryType")
    	@XmlElement(name = "dict")
    	public List<Dict> getQueryTypeList() {
    		return queryTypeList;
    	}
    
    	public void setQueryTypeList(List<Dict> queryTypeList) {
    		this.queryTypeList = queryTypeList;
    	}
    
    	@XmlElementWrapper(name = "showType")
    	@XmlElement(name = "dict")
    	public List<Dict> getShowTypeList() {
    		return showTypeList;
    	}
    
    	public void setShowTypeList(List<Dict> showTypeList) {
    		this.showTypeList = showTypeList;
    	}
    	
    }

其中的

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

对应的就是xml中预先定义好的

<?xml version="1.0" encoding="utf-8"?>
    <config>
    	
    	<category>
    		<category value="curd" label="增删改查（单表）">
    			<template>curd/controller.xml</template>
    		    ....
    		</category>
    		<category value="curd_many" label="增删改查（一对多）">
    			<template>curd/controller.xml</template>
    			....
    			<childTable>
    				<template>category-ref:dao</template>
    			</childTable>
    		</category>
    		<category value="dao" label="仅持久层（dao/entity/mapper）">
    			<template>dao/dao.xml</template>
    			....
    		</category>
    		<category value="treeTable" label="树结构表（一体）">
    			<template>treetable/controller.xml</template>
    			....
    		</category>
    		<category value="treeTableAndList" label="树结构表（左树右表）">
    			<template>category-ref:dao</template>
    		</category>
    	</category>
    	
    	<javaType>
    		<dict value="String" label="String"/>
    		....
    	</javaType>
    	
    	<queryType>
    		<dict value="=" label="="/>
    		....
    	</queryType>
    	
    	<showType>
    		<dict value="input" label="单行文本"/>
    		<dict value="textarea" label="多行文本"/>
    		....
    	</showType>
    </config>

其中的代码模板分类

![20180221173800537][]

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

/**
     * 生成方案Entity
     * @author ThinkGem
     * @version 2013-10-15
     */
    @XmlRootElement(name="category")
    public class GenCategory extends Dict {
    	
    	private static final long serialVersionUID = 1L;
    	private List<String> template;			// 主表模板
    	private List<String> childTableTemplate;// 子表模板
    	
    	public static String CATEGORY_REF = "category-ref:";
    
    	public GenCategory() {
    		super();
    	}
    
    	@XmlElement(name = "template")
    	public List<String> getTemplate() {
    		return template;
    	}
    
    	public void setTemplate(List<String> template) {
    		this.template = template;
    	}
    	
    	@XmlElementWrapper(name = "childTable")
    	@XmlElement(name = "template")
    	public List<String> getChildTableTemplate() {
    		return childTableTemplate;
    	}
    
    	public void setChildTableTemplate(List<String> childTableTemplate) {
    		this.childTableTemplate = childTableTemplate;
    	}
    	
    }

这两个主子其实对应的就是

![20180221174517475][]

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

![20180221161037091][]

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

![20180221164732222][]

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

![20180221165014991][]

然后在genTableForm.jsp页面进行渲染

<%@ page contentType="text/html;charset=UTF-8" %>
    <%@ include file="/WEB-INF/views/include/taglib.jsp"%>
    <html>
    <head>
    	<title>业务表管理</title>
    	<meta name="decorator" content="default"/>
    	<script type="text/javascript">
    		$(document).ready(function() {
    			$("#comments").focus();
    			$("#inputForm").validate({
    				submitHandler: function(form){
    					loading('正在提交，请稍等...');
    					$("input[type=checkbox]").each(function(){
    						$(this).after("<input type=\"hidden\" name=\""+$(this).attr("name")+"\" value=\""
    								+($(this).attr("checked")?"1":"0")+"\"/>");
    						$(this).attr("name", "_"+$(this).attr("name"));
    					});
    					form.submit();
    				},
    				errorContainer: "#messageBox",
    				errorPlacement: function(error, element) {
    					$("#messageBox").text("输入有误，请先更正。");
    					if (element.is(":checkbox")||element.is(":radio")||element.parent().is(".input-append")){
    						error.appendTo(element.parent().parent());
    					} else {
    						error.insertAfter(element);
    					}
    				}
    			});
    		});
    	</script>
    </head>
    <body>
    	<ul class="nav nav-tabs">
    		<li><a href="${ctx}/gen/genTable/">业务表列表</a></li>
    		<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>
    	</ul>
    	<c:choose>
    		<c:when test="${empty genTable.name}">
    			<form:form id="inputForm" modelAttribute="genTable" action="${ctx}/gen/genTable/form" method="post" class="form-horizontal">
    				<form:hidden path="id"/>
    				<sys:message content="${message}"/>
    				<br/>
    				<div class="control-group">
    					<label class="control-label">表名:</label>
    					<div class="controls">
    						<form:select path="name" class="input-xxlarge">
    							<form:options items="${tableList}" itemLabel="nameAndComments" itemValue="name" htmlEscape="false"/>
    						</form:select>
    					</div>
    					<div class="form-actions">
    						<input id="btnSubmit" class="btn btn-primary" type="submit" value="下一步"/> 
    						<input id="btnCancel" class="btn" type="button" value="返 回" οnclick="history.go(-1)"/>
    					</div>
    				</div>
    			</form:form>
    		</c:when>
    		<c:otherwise>
    			<form:form id="inputForm" modelAttribute="genTable" action="${ctx}/gen/genTable/save" method="post" class="form-horizontal">
    				<form:hidden path="id"/>
    				<sys:message content="${message}"/>
    				<fieldset>
    					<legend>基本信息</legend>
    					<div class="control-group">
    						<label class="control-label">表名:</label>
    						<div class="controls">
    							<form:input path="name" htmlEscape="false" maxlength="200" class="required" readonly="true"/>
    						</div>
    					</div>
    					<div class="control-group">
    						<label class="control-label">说明:</label>
    						<div class="controls">
    							<form:input path="comments" htmlEscape="false" maxlength="200" class="required"/>
    						</div>
    					</div>
    					<div class="control-group">
    						<label class="control-label">类名:</label>
    						<div class="controls">
    							<form:input path="className" htmlEscape="false" maxlength="200" class="required"/>
    						</div>
    					</div>
    					<div class="control-group">
    						<label class="control-label">父表表名:</label>
    						<div class="controls">
    							<form:select path="parentTable" cssClass="input-xlarge">
    								<form:option value="">无</form:option>
    								<form:options items="${tableList}" itemLabel="nameAndComments" itemValue="name" htmlEscape="false"/>
    							</form:select>
    							 当前表外键：
    							<form:select path="parentTableFk" cssClass="input-xlarge">
    								<form:option value="">无</form:option>
    								<form:options items="${genTable.columnList}" itemLabel="nameAndComments" itemValue="name" htmlEscape="false"/>
    							</form:select>
    							<span class="help-inline">如果有父表，请指定父表表名和外键</span>
    						</div>
    					</div>
    					<div class="control-group hide">
    						<label class="control-label">备注:</label>
    						<div class="controls">
    							<form:textarea path="remarks" htmlEscape="false" rows="4" maxlength="200" class="input-xxlarge"/>
    						</div>
    					</div>
    					<legend>字段列表</legend>
    					<div class="control-group">
    						<table id="contentTable" class="table table-striped table-bordered table-condensed">
    							<thead><tr>
    								<th title="数据库字段名">列名</th>
    								<th title="默认读取数据库字段备注">说明</th>
    								<th title="数据库中设置的字段类型及长度">物理类型</th>
    								<th title="实体对象的属性字段类型">Java类型</th>
    								<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>
    								<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>
    								<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>
    								<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>
    								<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>
    							<tbody>
    							<c:forEach items="${genTable.columnList}" var="column" varStatus="vs">
    								<tr${column.delFlag eq '1'?' class="error" title="已删除的列，保存之后消失！"':''}>
    									<td nowrap>
    										<input type="hidden" name="columnList[${vs.index}].id" value="${column.id}"/>
    										<input type="hidden" name="columnList[${vs.index}].delFlag" value="${column.delFlag}"/>
    										<input type="hidden" name="columnList[${vs.index}].genTable.id" value="${column.genTable.id}"/>
    										<input type="hidden" name="columnList[${vs.index}].name" value="${column.name}"/>${column.name}
    									</td>
    									<td>
    										<input type="text" name="columnList[${vs.index}].comments" value="${column.comments}" maxlength="200" class="required" style="width:100px;"/>
    									</td>
    									<td nowrap>
    										<input type="hidden" name="columnList[${vs.index}].jdbcType" value="${column.jdbcType}"/>${column.jdbcType}
    									</td>
    									<td>
    										<select name="columnList[${vs.index}].javaType" class="required input-mini" style="width:85px;*width:75px">
    											<c:forEach items="${config.javaTypeList}" var="dict">
    												<option value="${dict.value}" ${dict.value==column.javaType?'selected':''} title="${dict.description}">${dict.label}</option>
    											</c:forEach>
    										</select>
    									</td>
    									<td>
    										<input type="text" name="columnList[${vs.index}].javaField" value="${column.javaField}" maxlength="200" class="required input-small"/>
    									</td>
    									<td>
    										<input type="checkbox" name="columnList[${vs.index}].isPk" value="1" ${column.isPk eq '1' ? 'checked' : ''}/>
    									</td>
    									<td>
    										<input type="checkbox" name="columnList[${vs.index}].isNull" value="1" ${column.isNull eq '1' ? 'checked' : ''}/>
    									</td>
    									<td>
    										<input type="checkbox" name="columnList[${vs.index}].isInsert" value="1" ${column.isInsert eq '1' ? 'checked' : ''}/>
    									</td>
    									<td>
    										<input type="checkbox" name="columnList[${vs.index}].isEdit" value="1" ${column.isEdit eq '1' ? 'checked' : ''}/>
    									</td>
    									<td>
    										<input type="checkbox" name="columnList[${vs.index}].isList" value="1" ${column.isList eq '1' ? 'checked' : ''}/>
    									</td>
    									<td>
    										<input type="checkbox" name="columnList[${vs.index}].isQuery" value="1" ${column.isQuery eq '1' ? 'checked' : ''}/>
    									</td>
    									<td>
    										<select name="columnList[${vs.index}].queryType" class="required input-mini">
    											<c:forEach items="${config.queryTypeList}" var="dict">
    												<option value="${fns:escapeHtml(dict.value)}" ${fns:escapeHtml(dict.value)==column.queryType?'selected':''} title="${dict.description}">${fns:escapeHtml(dict.label)}</option>
    											</c:forEach>
    										</select>
    									</td>
    									<td>
    										<select name="columnList[${vs.index}].showType" class="required" style="width:100px;">
    											<c:forEach items="${config.showTypeList}" var="dict">
    												<option value="${dict.value}" ${dict.value==column.showType?'selected':''} title="${dict.description}">${dict.label}</option>
    											</c:forEach>
    										</select>
    									</td>
    									<td>
    										<input type="text" name="columnList[${vs.index}].dictType" value="${column.dictType}" maxlength="200" class="input-mini"/>
    									</td>
    									<td>
    										<input type="text" name="columnList[${vs.index}].sort" value="${column.sort}" maxlength="200" class="required input-min digits"/>
    									</td>
    								</tr>
    							</c:forEach>
    							</tbody>
    						</table>
    					</div>
    				</fieldset>
    				<div class="form-actions">
    					<shiro:hasPermission name="gen:genTable:edit"><input id="btnSubmit" class="btn btn-primary" type="submit" value="保 存"/> </shiro:hasPermission>
    					<input id="btnCancel" class="btn" type="button" value="返 回" οnclick="history.go(-1)"/>
    				</div>
    			</form:form>
    		</c:otherwise>
    	</c:choose>
    </body>
    </html>

注意其中的name属性

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

在GenTable中是用list来装的  
 ![20180221170048414][]

所以在spring mvc数据绑定的时候可以通过下标的形式来传值

![20180221170247851][]

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

![20180221170552673][]

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

![20180221171003095][]

然后调用genSchemeService.save()方法进行生成

![20180221171313420][]

如果是1的话就生成代码

![20180221171342178][]

generateCode方法如下:

private String generateCode(GenScheme genScheme){
    
    		StringBuilder result = new StringBuilder();
    		
    		// 查询主表及字段列
    		GenTable genTable = genTableDao.get(genScheme.getGenTable().getId());
    		genTable.setColumnList(genTableColumnDao.findList(new GenTableColumn(new GenTable(genTable.getId()))));
    		
    		// 获取所有代码模板
    		GenConfig config = GenUtils.getConfig();
    		
    		// 获取模板列表
    		List<GenTemplate> templateList = GenUtils.getTemplateList(config, genScheme.getCategory(), false); //获取所有不包含childTableTemplateList的数据
    		List<GenTemplate> childTableTemplateList = GenUtils.getTemplateList(config, genScheme.getCategory(), true);
    		
    		// 如果有子表模板，则需要获取子表列表
    		if (childTableTemplateList.size() > 0){
    			GenTable parentTable = new GenTable();
    			parentTable.setParentTable(genTable.getName());
    			genTable.setChildList(genTableDao.findList(parentTable));
    		}
    		
    		// 生成子表模板代码
    		for (GenTable childTable : genTable.getChildList()){
    			childTable.setParent(genTable);
    			childTable.setColumnList(genTableColumnDao.findList(new GenTableColumn(new GenTable(childTable.getId()))));
    			genScheme.setGenTable(childTable);
    			Map<String, Object> childTableModel = GenUtils.getDataModel(genScheme);
    			for (GenTemplate tpl : childTableTemplateList){
    				result.append(GenUtils.generateToFile(tpl, childTableModel, genScheme.getReplaceFile()));
    			}
    		}
    		
    		// 生成主表模板代码
    		genScheme.setGenTable(genTable);
    		Map<String, Object> model = GenUtils.getDataModel(genScheme);
    		for (GenTemplate tpl : templateList){
    			result.append(GenUtils.generateToFile(tpl, model, genScheme.getReplaceFile()));
    		}
    		return result.toString();
    	}

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

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

getTemplateList方法为

/**
    	 * 根据分类获取模板列表
    	 * @param config
    	 * @param category
    	 * @param isChildTable 是否是子表
    	 * @return
    	 */
    	public static List<GenTemplate> getTemplateList(GenConfig config, String category, boolean isChildTable){
    		List<GenTemplate> templateList = Lists.newArrayList();
    		if (config !=null && config.getCategoryList() != null && category !=  null){
    			for (GenCategory e : config.getCategoryList()){
    				if (category.equals(e.getValue())){
    					List<String> list = null;
    					if (!isChildTable){
    						list = e.getTemplate();
    					}else{
    						list = e.getChildTableTemplate();
    					}
    					if (list != null){
    						for (String s : list){
    							if (StringUtils.startsWith(s, GenCategory.CATEGORY_REF)){
    								templateList.addAll(getTemplateList(config, StringUtils.replace(s, GenCategory.CATEGORY_REF, ""), false));
    							}else{
    								GenTemplate template = fileToObject(s, GenTemplate.class);
    								if (template != null){
    									templateList.add(template);
    								}
    							}
    						}
    					}
    					break;
    				}
    			}
    		}
    		return templateList;
    	}

通过标志位来获取

if (!isChildTable){
    	list = e.getTemplate();
    }else{
    	list = e.getChildTableTemplate();
    }

主表，子表模板， 生成文件的方法是GenUtils.generateToFile(tpl, model, genScheme.getReplaceFile())

/**
    	 * 生成到文件
    	 * @param tpl
    	 * @param model
    	 * @param isReplaceFile
    	 * @return
    	 */
    	public static String generateToFile(GenTemplate tpl, Map<String, Object> model, boolean isReplaceFile){
    		// 获取生成文件
    		String fileName = Global.getProjectPath() + File.separator 
    				+ StringUtils.replaceEach(FreeMarkers.renderString(tpl.getFilePath() + "/", model), 
    						new String[]{"//", "/", "."}, new String[]{File.separator, File.separator, File.separator})
    				+ FreeMarkers.renderString(tpl.getFileName(), model);
    		logger.debug(" fileName === " + fileName);
    
    		// 获取生成文件内容
    		String content = FreeMarkers.renderString(StringUtils.trimToEmpty(tpl.getContent()), model);
    		logger.debug(" content === \r\n" + content);
    		
    		// 如果选择替换文件，则删除原文件
    		if (isReplaceFile){
    			FileUtils.deleteFile(fileName);
    		}
    		
    		// 创建并写入文件
    		if (FileUtils.createFile(fileName)){
    			FileUtils.writeToFile(fileName, content, true);
    			logger.debug(" file create === " + fileName);
    			return "生成成功："+fileName+"<br/>";
    		}else{
    			logger.debug(" file extents === " + fileName);
    			return "文件已存在："+fileName+"<br/>";
    		}
    	}

生成成功之后，会有如下提示:

![20180221172120306][]

[20180213194838258]: /images/20220531/97daff18913a4e789fe2429994240cc3.png
[20180221173800537]: /images/20220531/d973350a44584d3aa046c589a563eaa7.png
[20180221174517475]: /images/20220531/19c68ced208a4e868a0168ba8d66b3c0.png
[20180221161037091]: /images/20220531/87c1828501ad429aad85a7362b3ee899.png
[20180221164732222]: /images/20220531/286f50bdb6c44925ace5ee68a624c5d0.png
[20180221165014991]: /images/20220531/8687de4402ce4e459189400bfe35c658.png
[20180221170048414]: /images/20220531/209161a812934fcb89c0e30986aaf89f.png
[20180221170247851]: /images/20220531/919e19081c7841cf90c6f597d664a363.png
[20180221170552673]: /images/20220531/8ed5ec0f831c42ee8ede3e0b6b6dd8e1.png
[20180221171003095]: /images/20220531/867080ba9f8d48a0a0a315c05041d867.png
[20180221171313420]: /images/20220531/eb710cd6862e4ebea8f83b136fe72b51.png
[20180221171342178]: /images/20220531/3bdae56b20154690bf828094aec887a7.png
[20180221172120306]: /images/20220531/253914d9911041148bd9199cd998cdd9.png