1. 增加了数据Model属性对应Column获取插件（ModelColumnPlugin）；

2. 强化了example的orderBy方法；
3. 强化批量插入插件，实现按需插入指定字段；

README.md

@@ -11,6 +11,7 @@
 * Example 目标包修改插件（ExampleTargetPlugin）
 * 批量插入插件（BatchInsertPlugin）
 * 逻辑删除插件（LogicalDeletePlugin）
+* 数据Model属性对应Column获取插件（ModelColumnPlugin）
   
 ---------------------------------------
 Maven引用：  
@@ -18,7 +19,7 @@ Maven引用：
 <dependency>
   <groupId>com.itfsw</groupId>
   <artifactId>mybatis-generator-plugin</artifactId>
-  <version>1.0.4</version>
+  <version>1.0.5</version>
 </dependency>
 ```
 ---------------------------------------
@@ -163,6 +164,7 @@ public class Test {
 * Criteria的快速返回example()方法。  
 * Criteria链式调用增强，以前如果有按条件增加的查询语句会打乱链式查询构建，现在有了andIf(boolean ifAdd, CriteriaAdd add)方法可一直使用链式调用下去。
 * Example增强了setOrderByClause方法，新增orderBy(String orderByClause)方法直接返回example，增强链式调用，可以一路.下去了。
+* 继续增强orderBy(String orderByClause)方法，增加orderBy(String ... orderByClauses)方法，配合数据Model属性对应Column获取插件（ModelColumnPlugin）使用效果更佳。   
 插件：
 ```xml
 <!-- Example Criteria 增强插件 -->
@@ -233,6 +235,8 @@ public class Test {
                 .andField1GreaterThan(1)
                 .example()
                 .orderBy("field1 DESC")
+                // 这个配合数据Model属性对应Column获取插件（ModelColumnPlugin）使用
+                .orderBy(Tb.Column.field1.asc(), Tb.Column.field3.desc())
         );
     }
 }
@@ -248,7 +252,8 @@ Mybatis Generator 插件默认把Model类和Example类都生成到一个包下
 </plugin>
 ```
 ### 6. 批量插入插件
-提供了一个批量插入batchInsert方法，因为方法使用了使用了JDBC的getGenereatedKeys方法返回插入主键，所以只能在MYSQL和SQLServer下使用。  
+提供了一个批量插入batchInsert方法，因为方法使用了使用了JDBC的getGenereatedKeys方法返回插入主键，所以只能在MYSQL和SQLServer下使用。
+建议配合数据Model属性对应Column获取插件（ModelColumnPlugin）插件使用，会把批量插入方法从batchInsert(@Param("list") List<Tb> list)增强为batchInsert(@Param("list") List<Tb> list, @Param("insertColumns") Tb.Column ... insertColumns)，实现类似于insertSelective插入列！  
 插件：
 ```xml
 <!-- 批量插入插件 -->
@@ -265,7 +270,7 @@ public class Test {
                 .field1(0)
                 .field2("xx0")
                 .field3(0)
-                .field4(new Date())
+                .createTime(new Date())
                 .build()
         );
         list.add(
@@ -273,10 +278,13 @@ public class Test {
                 .field1(1)
                 .field2("xx1")
                 .field3(1)
-                .field4(new Date())
+                .createTime(new Date())
                 .build()
         );
+        // 普通插入，插入所有列
         this.tbMapper.batchInsert(list);
+        // !!!下面按需插入指定列（类似于insertSelective），需要数据Model属性对应Column获取插件（ModelColumnPlugin）插件
+        this.tbMapper.batchInsert(list, Tb.Column.field1, Tb.Column.field2, Tb.Column.field3, Tb.Column.createTime);
     }
 }
 ```
@@ -330,3 +338,64 @@ public class Test {
     }
 }
 ```
+### 8. 数据Model属性对应Column获取插件
+项目中我们有时需要获取数据Model对应数据库字段的名称，一般直接根据数据Model的属性就可以猜出数据库对应column的名字，可是有的时候当column使用了columnOverride或者columnRenamingRule时就需要去看数据库设计了，所以提供了这个插件获取model对应的数据库Column。  
+* 配合Example Criteria 增强插件（ExampleEnhancedPlugin）使用，这个插件还提供了asc()和desc()方法配合Example的orderBy方法效果更佳。
+* 配合批量插入插件（BatchInsertPlugin）使用，批量插入会被增强成batchInsert(@Param("list") List<XXX> list, @Param("insertColumns") XXX.Column ... insertColumns)。  
+
+插件：
+```xml
+<!-- 数据Model属性对应Column获取插件 -->
+<plugin type="com.itfsw.mybatis.generator.plugins.ModelColumnPlugin"/>
+```
+使用：  
+```java
+public class Test {
+    public static void main(String[] args) {
+        // 1. 获取Model对应column
+        String column = Tb.Column.createTime.value();
+
+        // 2. 配合Example Criteria 增强插件（ExampleEnhancedPlugin）使用orderBy方法
+        // old
+        this.tbMapper.selectByExample(
+                new TbExample()
+                .createCriteria()
+                .andField1GreaterThan(1)
+                .example()
+                .orderBy("field1 DESC, field3 ASC")
+        );
+
+        // better
+        this.tbMapper.selectByExample(
+                new TbExample()
+                .createCriteria()
+                .andField1GreaterThan(1)
+                .example()
+                .orderBy(Tb.Column.field1.desc(), Tb.Column.field3.asc())
+        );
+        
+        // 3. 配合批量插入插件（BatchInsertPlugin）使用实现按需插入指定列
+        List<Tb> list = new ArrayList<>();
+        list.add(
+                new Tb.Builder()
+                .field1(0)
+                .field2("xx0")
+                .field3(0)
+                .field4(new Date())
+                .build()
+        );
+        list.add(
+                new Tb.Builder()
+                .field1(1)
+                .field2("xx1")
+                .field3(1)
+                .field4(new Date())
+                .build()
+        );
+        // 这个会插入表所有列
+        this.tbMapper.batchInsert(list);
+        // 下面按需插入指定列（类似于insertSelective）
+        this.tbMapper.batchInsert(list, Tb.Column.field1, Tb.Column.field2, Tb.Column.field3, Tb.Column.createTime);
+    }
+}
+```
\ No newline at end of file

src/main/java/com/itfsw/mybatis/generator/plugins/ExampleEnhancedPlugin.java

@@ -162,5 +162,25 @@ public class ExampleEnhancedPlugin  extends PluginAdapter {
         CommentTools.addGeneralMethodComment(method, introspectedTable);
         topLevelClass.addMethod(method);
         logger.debug("itfsw(Example增强插件):"+topLevelClass.getType().getShortName()+"增加方法orderBy");
+
+        // 添加orderBy
+        Method mOrderByMore = new Method("orderBy");
+        mOrderByMore.setVisibility(JavaVisibility.PUBLIC);
+        mOrderByMore.setReturnType(topLevelClass.getType());
+        mOrderByMore.addParameter(new Parameter(FullyQualifiedJavaType.getStringInstance(), "orderByClauses", true));
+
+        mOrderByMore.addBodyLine("StringBuffer sb = new StringBuffer();");
+        mOrderByMore.addBodyLine("for (int i = 0; i < orderByClauses.length; i++) {");
+        mOrderByMore.addBodyLine("sb.append(orderByClauses[i]);");
+        mOrderByMore.addBodyLine("if (i < orderByClauses.length - 1) {");
+        mOrderByMore.addBodyLine("sb.append(\" , \");");
+        mOrderByMore.addBodyLine("}");
+        mOrderByMore.addBodyLine("}");
+        mOrderByMore.addBodyLine("this.setOrderByClause(sb.toString());");
+        mOrderByMore.addBodyLine("return this;");
+
+        CommentTools.addGeneralMethodComment(mOrderByMore, introspectedTable);
+        topLevelClass.addMethod(mOrderByMore);
+        logger.debug("itfsw(Example增强插件):"+topLevelClass.getType().getShortName()+"增加方法orderBy(String ... orderByClauses)");
     }
 }

src/main/java/com/itfsw/mybatis/generator/plugins/ModelBuilderPlugin.java

@@ -69,20 +69,21 @@ public class ModelBuilderPlugin extends PluginAdapter {
         InnerClass innerClass = new InnerClass(BUILDER_CLASS_NAME);
         innerClass.setVisibility(JavaVisibility.PUBLIC);
         innerClass.setStatic(true);
-        CommentTools.addClassComment(innerClass, introspectedTable);
+        CommentTools.addInnerClassComment(innerClass, introspectedTable);
         logger.debug("itfsw(数据Model链式构建插件):"+topLevelClass.getType().getShortName()+"增加内部Builder类。");
 
         // 构建内部obj变量
         Field f = new Field("obj", topLevelClass.getType());
         f.setVisibility(JavaVisibility.PRIVATE);
+        CommentTools.addFieldComment(f, introspectedTable);
         innerClass.addField(f);
 
         // 构造构造方法
         Method constructor = new Method(BUILDER_CLASS_NAME);
         constructor.setVisibility(JavaVisibility.PUBLIC);
         constructor.setConstructor(true);
-        constructor.addBodyLine(new StringBuilder("this.obj = new ")
-                .append(topLevelClass.getType().getShortName()).append("();").toString());
+        constructor.addBodyLine(new StringBuilder("this.obj = new ").append(topLevelClass.getType().getShortName()).append("();").toString());
+        CommentTools.addGeneralMethodComment(constructor, introspectedTable);
         innerClass.addMethod(constructor);
         logger.debug("itfsw(数据Model链式构建插件):"+topLevelClass.getType().getShortName()+".Builder增加的构造方法。");
 

src/main/java/com/itfsw/mybatis/generator/plugins/ModelColumnPlugin.java

+/*
+ * Copyright (c) 2017.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.itfsw.mybatis.generator.plugins;
+
+import com.itfsw.mybatis.generator.plugins.utils.CommentTools;
+import org.mybatis.generator.api.IntrospectedColumn;
+import org.mybatis.generator.api.IntrospectedTable;
+import org.mybatis.generator.api.PluginAdapter;
+import org.mybatis.generator.api.dom.java.*;
+import org.mybatis.generator.internal.util.JavaBeansUtil;
+import org.mybatis.generator.internal.util.StringUtility;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+/**
+ * ---------------------------------------------------------------------------
+ * 数据Model属性对应Column获取插件
+ * ---------------------------------------------------------------------------
+ * @author: hewei
+ * @time:2017/1/17 11:20
+ * ---------------------------------------------------------------------------
+ */
+public class ModelColumnPlugin  extends PluginAdapter {
+    public static final String ENUM_NAME = "Column";  // 内部Enum名
+    private static final Logger logger = LoggerFactory.getLogger(ModelColumnPlugin.class);
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean validate(List<String> warnings) {
+        // 插件使用前提是targetRuntime为MyBatis3
+        if (StringUtility.stringHasValue(getContext().getTargetRuntime()) && "MyBatis3".equalsIgnoreCase(getContext().getTargetRuntime()) == false ){
+            logger.warn("itfsw:插件"+this.getClass().getTypeName()+"要求运行targetRuntime必须为MyBatis3！");
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Model Methods 生成
+     * 具体执行顺序 http://www.mybatis.org/generator/reference/pluggingIn.html
+     *
+     * @param topLevelClass
+     * @param introspectedTable
+     * @return
+     */
+    @Override
+    public boolean modelBaseRecordClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
+        List<Field> fields = topLevelClass.getFields();
+
+        // 生成内部枚举
+        InnerEnum innerEnum = new InnerEnum(new FullyQualifiedJavaType(ENUM_NAME));
+        innerEnum.setVisibility(JavaVisibility.PUBLIC);
+        innerEnum.setStatic(true);
+        CommentTools.addInnerEnumComment(innerEnum, introspectedTable);
+        logger.debug("itfsw(数据Model属性对应Column获取插件):"+topLevelClass.getType().getShortName()+"增加内部Builder类。");
+
+        // 生成属性和构造函数
+        Field columnField = new Field("column", FullyQualifiedJavaType.getStringInstance());
+        columnField.setVisibility(JavaVisibility.PRIVATE);
+        columnField.setFinal(true);
+        CommentTools.addFieldComment(columnField, introspectedTable);
+        innerEnum.addField(columnField);
+
+        Method mValue = new Method("value");
+        mValue.setVisibility(JavaVisibility.PUBLIC);
+        mValue.setReturnType(FullyQualifiedJavaType.getStringInstance());
+        mValue.addBodyLine("return this.column;");
+        CommentTools.addGeneralMethodComment(mValue, introspectedTable);
+        innerEnum.addMethod(mValue);
+
+        Method mGetValue = new Method("getValue");
+        mGetValue.setVisibility(JavaVisibility.PUBLIC);
+        mGetValue.setReturnType(FullyQualifiedJavaType.getStringInstance());
+        mGetValue.addBodyLine("return this.column;");
+        CommentTools.addGeneralMethodComment(mGetValue, introspectedTable);
+        innerEnum.addMethod(mGetValue);
+
+        Method constructor = new Method(ENUM_NAME);
+        constructor.setConstructor(true);
+        constructor.addBodyLine("this.column = column;");
+        constructor.addParameter(new Parameter(FullyQualifiedJavaType.getStringInstance(), "column"));
+        CommentTools.addGeneralMethodComment(constructor, introspectedTable);
+        innerEnum.addMethod(constructor);
+        logger.debug("itfsw(数据Model属性对应Column获取插件):"+topLevelClass.getType().getShortName()+".Column增加构造方法和column属性。");
+
+        // Enum枚举
+        for (IntrospectedColumn introspectedColumn : introspectedTable.getAllColumns()) {
+            Field field = JavaBeansUtil.getJavaBeansField(introspectedColumn, context, introspectedTable);
+
+            StringBuffer sb = new StringBuffer();
+            sb.append(field.getName());
+            sb.append("(\"");
+            sb.append(introspectedColumn.getActualColumnName());
+            sb.append("\")");
+
+            innerEnum.addEnumConstant(sb.toString());
+            logger.debug("itfsw(数据Model属性对应Column获取插件):" + topLevelClass.getType().getShortName() + ".Column增加" + field.getName() + "枚举。");
+        }
+
+        // asc 和 desc 方法
+        Method desc = new Method("desc");
+        desc.setVisibility(JavaVisibility.PUBLIC);
+        desc.setReturnType(FullyQualifiedJavaType.getStringInstance());
+        desc.addBodyLine("return this.column + \" DESC\";");
+        CommentTools.addGeneralMethodComment(desc, introspectedTable);
+        innerEnum.addMethod(desc);
+
+        Method asc = new Method("asc");
+        asc.setVisibility(JavaVisibility.PUBLIC);
+        asc.setReturnType(FullyQualifiedJavaType.getStringInstance());
+        asc.addBodyLine("return this.column + \" ASC\";");
+        CommentTools.addGeneralMethodComment(asc, introspectedTable);
+        innerEnum.addMethod(asc);
+        logger.debug("itfsw(数据Model属性对应Column获取插件):" + topLevelClass.getType().getShortName() + ".Column增加asc()和desc()方法。");
+
+        topLevelClass.addInnerEnum(innerEnum);
+        return true;
+    }
+}

src/main/java/com/itfsw/mybatis/generator/plugins/utils/CommentTools.java

@@ -17,10 +17,7 @@
 package com.itfsw.mybatis.generator.plugins.utils;
 
 import org.mybatis.generator.api.IntrospectedTable;
-import org.mybatis.generator.api.dom.java.Field;
-import org.mybatis.generator.api.dom.java.InnerClass;
-import org.mybatis.generator.api.dom.java.Interface;
-import org.mybatis.generator.api.dom.java.Method;
+import org.mybatis.generator.api.dom.java.*;
 import org.mybatis.generator.api.dom.xml.TextElement;
 import org.mybatis.generator.api.dom.xml.XmlElement;
 import org.mybatis.generator.config.MergeConstants;
@@ -62,7 +59,7 @@ public class CommentTools {
      * @param innerClass 类
      * @param introspectedTable 表
      */
-    public static void addClassComment(InnerClass innerClass, IntrospectedTable introspectedTable) {
+    public static void addInnerClassComment(InnerClass innerClass, IntrospectedTable introspectedTable) {
         StringBuilder sb = new StringBuilder();
         innerClass.addJavaDocLine("/**"); //$NON-NLS-1$
         innerClass.addJavaDocLine(" * 这是Mybatis Generator拓展插件生成的类(请勿删除)."); //$NON-NLS-1$
@@ -75,6 +72,25 @@ public class CommentTools {
         innerClass.addJavaDocLine(" */"); //$NON-NLS-1$
     }
 
+    /**
+     * 生成通用内部Enum注释
+     *
+     * @param innerEnum 类
+     * @param introspectedTable 表
+     */
+    public static void addInnerEnumComment(InnerEnum innerEnum, IntrospectedTable introspectedTable) {
+        StringBuilder sb = new StringBuilder();
+        innerEnum.addJavaDocLine("/**"); //$NON-NLS-1$
+        innerEnum.addJavaDocLine(" * 这是Mybatis Generator拓展插件生成的枚举(请勿删除)."); //$NON-NLS-1$
+        sb.append(" * This class corresponds to the database table "); //$NON-NLS-1$
+        sb.append(introspectedTable.getFullyQualifiedTable());
+        innerEnum.addJavaDocLine(sb.toString());
+        innerEnum.addJavaDocLine(" *");
+        innerEnum.addJavaDocLine(" * "+MergeConstants.NEW_ELEMENT_TAG);
+        innerEnum.addJavaDocLine(" * @author hewei");
+        innerEnum.addJavaDocLine(" */"); //$NON-NLS-1$
+    }
+
     /**
      * 生成通用方法注解
      *