mybaits-generator生成中文注释并带分页

柔情只为你懂 2022-07-16 00:07 173阅读 0赞

## mybaits-generator修改的版本：1.3.4 ##

org.mybatis.generator.core\_1.3.4.201608190045.jar

## 修改源代码路径： ##

org.mybatis.generator.internal.DefaultCommentGenerator

## 修改后的jar下载地址： ##

[http://download.csdn.net/download/paincupid/9904469][http_download.csdn.net_download_paincupid_9904469]

## generatorConfig.xml ##

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd" >
    <generatorConfiguration >
        
        <classPathEntry location="D:\ProgramData\jar_repo\mysql-jar\mysql-connector-java-5.1.30.jar" />
    
        
        <context id="context1" targetRuntime="MyBatis3">
            
            <property name="javaFileEncoding" value="UTF-8"/>
            
            <property name="javaFormatter" value="org.mybatis.generator.api.dom.DefaultJavaFormatter"/>
            
            <property name="xmlFormatter" value="org.mybatis.generator.api.dom.DefaultXmlFormatter"/>
            <property name="beginningDelimiter" value="`"/>
            <property name="endingDelimiter" value="`"/>
            
            <plugin type="org.mybatis.generator.plugins.ToStringPlugin" />
            
            <plugin type="org.mybatis.generator.plugins.SerializablePlugin" />
            
            
            
            
            <plugin type="org.mybatis.generator.plugins.MySQLPaginationPlugin2"></plugin>
            
            <commentGenerator>
                
                
                <property name="suppressAllComments" value="false"/>
            </commentGenerator>
    
            
            <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/lee" userId="lee" password="eee" />
            
            <javaModelGenerator targetPackage="arthur.dy.lee.model" targetProject="src/main/java" />
            
            <sqlMapGenerator targetPackage="mapping" targetProject="src/main/resources" />
            
            <javaClientGenerator targetPackage="arthur.dy.lee.dao" targetProject="src/main/java" type="XMLMAPPER" />
            
            
    
            <table schema="" tableName="finance" domainObjectName="Finance">
                
            </table>
            
    
        </context>
    </generatorConfiguration>

## 源代码： ##

package org.mybatis.generator.internal;
    
    import static org.mybatis.generator.internal.util.StringUtility.isTrue;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.Properties;
    import org.mybatis.generator.api.CommentGenerator;
    import org.mybatis.generator.api.IntrospectedColumn;
    import org.mybatis.generator.api.IntrospectedTable;
    import org.mybatis.generator.api.dom.java.CompilationUnit;
    import org.mybatis.generator.api.dom.java.Field;
    import org.mybatis.generator.api.dom.java.InnerClass;
    import org.mybatis.generator.api.dom.java.InnerEnum;
    import org.mybatis.generator.api.dom.java.JavaElement;
    import org.mybatis.generator.api.dom.java.Method;
    import org.mybatis.generator.api.dom.java.Parameter;
    import org.mybatis.generator.api.dom.java.TopLevelClass;
    import org.mybatis.generator.api.dom.xml.TextElement;
    import org.mybatis.generator.api.dom.xml.XmlElement;
    import org.mybatis.generator.config.MergeConstants;
    import org.mybatis.generator.config.PropertyRegistry;
    import org.mybatis.generator.internal.util.StringUtility;
    
    /** * The Class DefaultCommentGenerator. * */
    public class DefaultCommentGenerator implements CommentGenerator { 
    
        /** The properties. */
        private Properties properties;
    
        /** The suppress date. */
        private boolean suppressDate;
    
        /** The suppress all comments. */
        private boolean suppressAllComments;
    
        /** The addition of table remark's comments. * If suppressAllComments is true, this option is ignored*/
        private boolean addRemarkComments;
    
        private SimpleDateFormat dateFormat;
    
        /** * Instantiates a new default comment generator. */
        public DefaultCommentGenerator() {
            super();
            properties = new Properties();
            suppressDate = false;
            suppressAllComments = false;
            addRemarkComments = false;
            dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addJavaFileComment(org.mybatis.generator.api.dom.java.CompilationUnit) */
        public void addJavaFileComment(CompilationUnit compilationUnit) {
            // add no file level comments by default
        }
    
        /** * Adds a suitable comment to warn users that the element was generated, and when it was generated. * * @param xmlElement * the xml element */
        public void addComment(XmlElement xmlElement) {
            if (suppressAllComments) {
                return;
            }
    
            xmlElement.addElement(new TextElement("")); //$NON-NLS-1$
    
           /* StringBuilder sb = new StringBuilder(); sb.append(" WARNING - "); sb.append(MergeConstants.NEW_ELEMENT_TAG); xmlElement.addElement(new TextElement(sb.toString())); xmlElement .addElement(new TextElement( " 1This element is automatically generated by MyBatis Generator, do not modify.")); String s = getDateString(); if (s != null) { sb.setLength(0); sb.append(" This element was generated on "); //$NON-NLS-1$ sb.append(s); sb.append('.'); xmlElement.addElement(new TextElement(sb.toString())); }*/
    
            //xmlElement.addElement(new TextElement("-->")); //$NON-NLS-1$
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addRootComment(org.mybatis.generator.api.dom.xml.XmlElement) */
        public void addRootComment(XmlElement rootElement) {
            // add no document level comments by default
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addConfigurationProperties(java.util.Properties) */
        public void addConfigurationProperties(Properties properties) {
            this.properties.putAll(properties);
    
            suppressDate = isTrue(properties
                    .getProperty(PropertyRegistry.COMMENT_GENERATOR_SUPPRESS_DATE));
    
            suppressAllComments = isTrue(properties
                    .getProperty(PropertyRegistry.COMMENT_GENERATOR_SUPPRESS_ALL_COMMENTS));
    
            addRemarkComments = isTrue(properties
                    .getProperty(PropertyRegistry.COMMENT_GENERATOR_ADD_REMARK_COMMENTS));
    
            String dateFormatString = properties.getProperty(PropertyRegistry.COMMENT_GENERATOR_DATE_FORMAT);
            if (StringUtility.stringHasValue(dateFormatString)) {
                //dateFormat = new SimpleDateFormat(dateFormatString);
                dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
            }
        }
    
        /** * This method adds the custom javadoc tag for. You may do nothing if you do not wish to include the Javadoc tag - * however, if you do not include the Javadoc tag then the Java merge capability of the eclipse plugin will break. * * @param javaElement * the java element * @param markAsDoNotDelete * the mark as do not delete */
        protected void addJavadocTag(JavaElement javaElement,
                boolean markAsDoNotDelete) {
            javaElement.addJavaDocLine(" *"); //$NON-NLS-1$
            StringBuilder sb = new StringBuilder();
            sb.append(" * "); //$NON-NLS-1$
            //sb.append(MergeConstants.NEW_ELEMENT_TAG);
            if (markAsDoNotDelete) {
                sb.append(" do_not_delete_during_merge"); //$NON-NLS-1$
            }
            String s = getDateString();
            if (s != null) {
                sb.append(' ');
                sb.append(s);
            }
            javaElement.addJavaDocLine(sb.toString());
        }
    
        /** * This method returns a formated date string to include in the Javadoc tag * and XML comments. You may return null if you do not want the date in * these documentation elements. * * @return a string representing the current timestamp, or null */
        protected String getDateString() {
            if (suppressDate) {
                return null;
            } else if (dateFormat != null) {
                return dateFormat.format(new Date());
            } else {
                return new Date().toString();
            }
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addClassComment(org.mybatis.generator.api.dom.java.InnerClass, org.mybatis.generator.api.IntrospectedTable) */
        public void addClassComment(InnerClass innerClass,
                IntrospectedTable introspectedTable) {
            if (suppressAllComments) {
                return;
            }
    
    // StringBuilder sb = new StringBuilder();
    //
            innerClass.addJavaDocLine("/** " +introspectedTable.getFullyQualifiedTable()+" **/"); //$NON-NLS-1$
    // /*innerClass
    // .addJavaDocLine(" * 2This class was generated by MyBatis Generator."); 
    //
    // sb.append(" * This class corresponds to the database table "); */
    // sb.append(introspectedTable.getFullyQualifiedTable());
    // innerClass.addJavaDocLine(sb.toString());
    //
    // addJavadocTag(innerClass, false);
    //
    // innerClass.addJavaDocLine(" **/"); //$NON-NLS-1$
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addTopLevelClassComment(org.mybatis.generator.api.dom.java.TopLevelClass, org.mybatis.generator.api.IntrospectedTable) */
        @Override
        public void addModelClassComment(TopLevelClass topLevelClass,
                IntrospectedTable introspectedTable) {
            if (suppressAllComments  || !addRemarkComments) {
                return;
            }
    
            //StringBuilder sb = new StringBuilder();
    
            topLevelClass.addJavaDocLine("/**lee20160923a "+ introspectedTable.getFullyQualifiedTable()); //$NON-NLS-1$
    
            String remarks = introspectedTable.getRemarks();
            if (addRemarkComments && StringUtility.stringHasValue(remarks)) {
                //topLevelClass.addJavaDocLine(" * 3Database Table Remarks:");
                String[] remarkLines = remarks.split(System.getProperty("line.separator"));  //$NON-NLS-1$
                for (String remarkLine : remarkLines) {
                    topLevelClass.addJavaDocLine(" * lee20160923b" + remarkLine);  //$NON-NLS-1$
                }
            }
           /* topLevelClass.addJavaDocLine(" *"); //$NON-NLS-1$ topLevelClass.addJavaDocLine(" * "); //$NON-NLS-1$ sb.append(introspectedTable.getFullyQualifiedTable()); topLevelClass.addJavaDocLine(sb.toString()); addJavadocTag(topLevelClass, true);*/
    
            topLevelClass.addJavaDocLine(" */"); //$NON-NLS-1$
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addEnumComment(org.mybatis.generator.api.dom.java.InnerEnum, org.mybatis.generator.api.IntrospectedTable) */
        public void addEnumComment(InnerEnum innerEnum,
                IntrospectedTable introspectedTable) {
            if (suppressAllComments) {
                return;
            }
    
    // StringBuilder sb = new StringBuilder();
    //
    // innerEnum.addJavaDocLine("/**"); //$NON-NLS-1$
    // innerEnum
    // .addJavaDocLine(" * 51This enum was generated by MyBatis Generator."); //$NON-NLS-1$
    //
    // sb.append(" * 52This enum corresponds to the database table "); //$NON-NLS-1$
    // sb.append(introspectedTable.getFullyQualifiedTable());
    // innerEnum.addJavaDocLine(sb.toString());
    //
    // addJavadocTag(innerEnum, false);
    //
    // innerEnum.addJavaDocLine(" */"); //$NON-NLS-1$
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addFieldComment(org.mybatis.generator.api.dom.java.Field, org.mybatis.generator.api.IntrospectedTable, org.mybatis.generator.api.IntrospectedColumn) */
        public void addFieldComment(Field field,
                IntrospectedTable introspectedTable,
                IntrospectedColumn introspectedColumn) {
            if (suppressAllComments) {
                return;
            }
    
            String remarks = introspectedColumn.getRemarks()+" "+ introspectedColumn.getActualColumnName();
            field.addJavaDocLine("/** "+remarks+ " **/");
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addFieldComment(org.mybatis.generator.api.dom.java.Field, org.mybatis.generator.api.IntrospectedTable) */
        public void addFieldComment(Field field, IntrospectedTable introspectedTable) {
            if (suppressAllComments) {
                return;
            }
    
    // StringBuilder sb = new StringBuilder();
    //
            field.addJavaDocLine("/** tableName: "+introspectedTable.getFullyQualifiedTable()+" **/"); 
    // field.addJavaDocLine(introspectedTable.getAliasedFullyQualifiedTableNameAtRuntime()); //$NON-NLS-1$
    //
    // sb.append(introspectedTable.getFullyQualifiedTable());
    // field.addJavaDocLine(sb.toString());
    //
    // addJavadocTag(field, false);
    //
    // field.addJavaDocLine(" */"); //$NON-NLS-1$
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addGeneralMethodComment(org.mybatis.generator.api.dom.java.Method, org.mybatis.generator.api.IntrospectedTable) */
        public void addGeneralMethodComment(Method method,
                IntrospectedTable introspectedTable) {
            if (suppressAllComments) {
                return;
            }
    
    // StringBuilder sb = new StringBuilder();
    //
    // method.addJavaDocLine("/**"); //$NON-NLS-1$
    // method
    // .addJavaDocLine(" * 7This method was generated by MyBatis Generator."); //$NON-NLS-1$
    //
    // sb.append(" * 72This method corresponds to the database table "); //$NON-NLS-1$
    // sb.append(introspectedTable.getFullyQualifiedTable());
    // method.addJavaDocLine(sb.toString());
    //
    // addJavadocTag(method, false);
    //
    // method.addJavaDocLine(" */"); //$NON-NLS-1$
    
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addGetterComment(org.mybatis.generator.api.dom.java.Method, org.mybatis.generator.api.IntrospectedTable, org.mybatis.generator.api.IntrospectedColumn) */
        public void addGetterComment(Method method,
                IntrospectedTable introspectedTable,
                IntrospectedColumn introspectedColumn) {
            if (suppressAllComments) {
                return;
            }
    
            method.addJavaDocLine("/** "+introspectedColumn.getRemarks()+" "+ introspectedColumn.getActualColumnName() +" **/");
        }
    
        public void addSetterComment(Method method,
                IntrospectedTable introspectedTable,
                IntrospectedColumn introspectedColumn) {
            if (suppressAllComments) {
                return;
            }
    
            method.addJavaDocLine("/** "+introspectedColumn.getRemarks()+" "+ introspectedColumn.getActualColumnName() +" **/");
        }
    
        /* (non-Javadoc) * @see org.mybatis.generator.api.CommentGenerator#addClassComment(org.mybatis.generator.api.dom.java.InnerClass, org.mybatis.generator.api.IntrospectedTable, boolean) */
        public void addClassComment(InnerClass innerClass,
                IntrospectedTable introspectedTable, boolean markAsDoNotDelete) {
            if (suppressAllComments) {
                return;
            }
    
    // StringBuilder sb = new StringBuilder();
    //
            innerClass.addJavaDocLine("/** tableName: "+introspectedTable.getFullyQualifiedTable()+" **/"); //$NON-NLS-1$
    // innerClass
    // .addJavaDocLine(" * 8This class was generated by MyBatis Generator."); //$NON-NLS-1$
    //
    // sb.append(" * 82This class corresponds to the database table "); //$NON-NLS-1$
    // sb.append(introspectedTable.getFullyQualifiedTable());
    // innerClass.addJavaDocLine(sb.toString());
    //
    // addJavadocTag(innerClass, markAsDoNotDelete);
    //
    // innerClass.addJavaDocLine(" */"); //$NON-NLS-1$
        }
    }

## 分页 ##

### 在generatorConfig.xml中加入： ###

### 分页源代码 ###

下载mybaits-generator源下载，然后在org.mybatis.generator.plugins路径下新建一下类：MySQLPaginationPlugin  
然后编辑后放到eclipse->plugin下的 org.mybatis.generator.core\_1.3.4.201608190045.jar包里即可。  
这样做的好处是，如果你自己写的话，你需要打成jar包，然后再在本地仓库引用，比较麻烦，否则你会抛无法实例化对象的错误。错误如下所示：

D:\Workspaces_All\2016.08.13-neon-springmvc\.metadata\.plugins\org.mybatis.generator.eclipse.ui\.generatedAntScripts\springmvc-generatorConfig.xml.xml:4: java.lang.RuntimeException: Cannot instantiate object of type org.mybatis.generator.plugins.MySQLPaginationPlugin 
    java.lang.RuntimeException: Cannot instantiate object of type org.mybatis.generator.plugins.MySQLPaginationPlugin

### 自已写的 MySQLPaginationPlugin.class类 ###

package org.mybatis.generator.plugins;
    
    import java.util.List;
    import org.mybatis.generator.api.CommentGenerator;
    import org.mybatis.generator.api.IntrospectedTable;
    import org.mybatis.generator.api.PluginAdapter;
    import org.mybatis.generator.api.dom.java.Field;
    import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
    import org.mybatis.generator.api.dom.java.JavaVisibility;
    import org.mybatis.generator.api.dom.java.Method;
    import org.mybatis.generator.api.dom.java.Parameter;
    import org.mybatis.generator.api.dom.java.TopLevelClass;
    import org.mybatis.generator.api.dom.xml.Attribute;
    import org.mybatis.generator.api.dom.xml.TextElement;
    import org.mybatis.generator.api.dom.xml.XmlElement;
    
    public class MySQLPaginationPlugin extends PluginAdapter {
    
        @Override
        public boolean modelExampleClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {
            // add field, getter, setter for limit clause
            addLimit(topLevelClass, introspectedTable, "offset");
            addLimit(topLevelClass, introspectedTable, "limit");
            return super.modelExampleClassGenerated(topLevelClass, introspectedTable);
        }
    
        @Override
        public boolean sqlMapSelectByExampleWithoutBLOBsElementGenerated(XmlElement element,
                IntrospectedTable introspectedTable) {
            XmlElement isNotNullElement = new XmlElement("if"); //$NON-NLS-1$
            isNotNullElement.addAttribute(new Attribute("test", "offset != null and offset >= 0 and limit != null and limit>=0")); //$NON-NLS-1$ //$NON-NLS-2$
            isNotNullElement.addElement(new TextElement("limit ${offset} , ${limit}"));
    
            element.addElement(isNotNullElement);
            return super.sqlMapUpdateByExampleWithoutBLOBsElementGenerated(element, introspectedTable);
        }
    
        private void addLimit(TopLevelClass topLevelClass, IntrospectedTable introspectedTable, String name) {
            CommentGenerator commentGenerator = context.getCommentGenerator();
            Field field = new Field();
            field.setVisibility(JavaVisibility.PROTECTED);
            //field.setType(FullyQualifiedJavaType.getIntInstance());
            field.setType(new FullyQualifiedJavaType("Integer"));
            field.setName(name);
            field.setInitializationString("-1");
            commentGenerator.addFieldComment(field, introspectedTable);
            topLevelClass.addField(field);
            char c = name.charAt(0);
            String camel = Character.toUpperCase(c) + name.substring(1);
            Method method = new Method();
            method.setVisibility(JavaVisibility.PUBLIC);
            method.setName("set" + camel);
            //method.addParameter(new Parameter(FullyQualifiedJavaType.getIntInstance(), name));
            method.addParameter(new Parameter(new FullyQualifiedJavaType("Integer"), name));
            method.addBodyLine("this." + name + "=" + name + ";");
            commentGenerator.addGeneralMethodComment(method, introspectedTable);
            topLevelClass.addMethod(method);
            method = new Method();
            method.setVisibility(JavaVisibility.PUBLIC);
            //method.setReturnType(FullyQualifiedJavaType.getIntInstance());
            method.setReturnType(new FullyQualifiedJavaType("Integer"));
            method.setName("get" + camel);
            method.addBodyLine("return " + name + ";");
            commentGenerator.addGeneralMethodComment(method, introspectedTable);
            topLevelClass.addMethod(method);
        }
    
        @Override
        public boolean validate(List<String> arg0) {
            return true;
        }
    
    }

### 如果不用分页对象，只是用offset和limit属性的话，下面的就不用看了。如果分页是用对象的话, 用这个： MySQLPagerPlugin ###

package org.mybatis.generator.plugins;
    
    import org.mybatis.generator.api.CommentGenerator;
    import org.mybatis.generator.api.IntrospectedTable;
    import org.mybatis.generator.api.PluginAdapter;
    import org.mybatis.generator.api.dom.java.*;
    import org.mybatis.generator.api.dom.xml.Attribute;
    import org.mybatis.generator.api.dom.xml.TextElement;
    import org.mybatis.generator.api.dom.xml.XmlElement;
    import java.util.List;
    
    public class MySQLPagerPlugin extends PluginAdapter { 
        @Override
        public boolean modelExampleClassGenerated(TopLevelClass topLevelClass,
                                                  IntrospectedTable introspectedTable) {
    
            addPage(topLevelClass, introspectedTable, "page");
            return super.modelExampleClassGenerated(topLevelClass, introspectedTable);
        }
    
        @Override
        public boolean sqlMapSelectByExampleWithoutBLOBsElementGenerated(XmlElement element,
                                                                         IntrospectedTable introspectedTable) {
            XmlElement page = new XmlElement("if");
            page.addAttribute(new Attribute("test", "page != null"));
            page.addElement(new TextElement("limit #{page.begin} , #{page.length}"));
            element.addElement(page);
    
            return super.sqlMapUpdateByExampleWithoutBLOBsElementGenerated(element, introspectedTable);
        }
    
        /** * @param topLevelClass * @param introspectedTable * @param name */
        private void addPage(TopLevelClass topLevelClass, IntrospectedTable introspectedTable,
                             String name) {
            topLevelClass.addImportedType(new FullyQualifiedJavaType(
                    "com.aliyun.activity.dal.model.Page"));
            CommentGenerator commentGenerator = context.getCommentGenerator();
            Field field = new Field();
            field.setVisibility(JavaVisibility.PROTECTED);
            field.setType(new FullyQualifiedJavaType("com.aliyun.activity.dal.model.Page"));
            field.setName(name);
            commentGenerator.addFieldComment(field, introspectedTable);
            topLevelClass.addField(field);
            char c = name.charAt(0);
            String camel = Character.toUpperCase(c) + name.substring(1);
            Method method = new Method();
            method.setVisibility(JavaVisibility.PUBLIC);
            method.setName("set" + camel);
            method.addParameter(new Parameter(new FullyQualifiedJavaType(
                    "com.aliyun.activity.dal.model.Page"), name));
            method.addBodyLine("this." + name + "=" + name + ";");
            commentGenerator.addGeneralMethodComment(method, introspectedTable);
            topLevelClass.addMethod(method);
            method = new Method();
            method.setVisibility(JavaVisibility.PUBLIC);
            method.setReturnType(new FullyQualifiedJavaType("com.aliyun.babel.model.Page"));
            method.setName("get" + camel);
            method.addBodyLine("return " + name + ";");
            commentGenerator.addGeneralMethodComment(method, introspectedTable);
            topLevelClass.addMethod(method);
        }
    
        /** * This plugin is always valid - no properties are required */
        public boolean validate(List<String> warnings) {
            return true;
        }
    }

## 生成的效果代码 ##

![这里写图片描述][20160924222510263]

![这里写图片描述][20160924222526394]

![这里写图片描述][20160924222537488]

![这里写图片描述][20160924222549044]

如果使用page对象进行分页，需要加入page类

import java.io.Serializable;
    
    public final class Page implements Serializable { 
    
        /** * 默认的序列化版本 id. */
        private static final long serialVersionUID = 1L;
        /** * 分页查询开始记录位置. */
        private int begin;
        /** * 分页查看下结束位置. */
        private int end;
        /** * 每页显示记录数. */
        private int length = 20;
        /** * 查询结果总记录数. */
        private int totalRecords;
        /** * 当前页码. */
        private int pageNo;
        /** * 总共页数. */
        private int pageCount;
    
        public Page() {
        }
    
        /** * 构造函数. * * @param begin * @param length */
        public Page(int begin, int length) {
            this.begin = begin;
            this.length = length;
            this.end = this.begin + this.length;
            this.pageNo = (int) Math.floor((this.begin * 1.0d) / this.length) + 1;
        }
    
        /** * @param begin * @param length * @param count */
        public Page(int begin, int length, int totalRecords) {
            this(begin, length);
            this.totalRecords = totalRecords;
        }
    
        /** * 设置页数，自动计算数据范围. * */
        public Page(int pageNo) {
            this.pageNo = pageNo;
            pageNo = pageNo > 0 ? pageNo : 1;
            this.begin = this.length * (pageNo - 1);
            this.end = this.length * pageNo;
        }
    
        public int getBegin() {
            return begin;
        }
    
        public int getEnd() {
            return end;
        }
    
        public void setEnd(int end) {
            this.end = end;
        }
    
        public void setBegin(int begin) {
            this.begin = begin;
            if (this.length != 0) {
                this.pageNo = (int) Math.floor((this.begin * 1.0d) / this.length) + 1;
            }
        }
    
        public int getLength() {
            return length;
        }
    
        public void setLength(int length) {
            this.length = length;
            if (this.begin != 0) {
                this.pageNo = (int) Math.floor((this.begin * 1.0d) / this.length) + 1;
            }
        }
    
        public int getTotalRecords() {
            return totalRecords;
        }
    
        public void setTotalRecords(int totalRecords) {
            this.totalRecords = totalRecords;
            this.pageCount = (int) Math.floor((this.totalRecords * 1.0d) / this.length);
            if (this.totalRecords % this.length != 0) {
                this.pageCount++;
            }
        }
    
        public int getPageNo() {
            return pageNo;
        }
    
        public void setPageNo(int pageNo) {
            this.pageNo = pageNo;
            pageNo = pageNo > 0 ? pageNo : 1;
            this.begin = this.length * (pageNo - 1);
            this.end = this.length * pageNo;
        }
    
        public int getPageCount() {
            if (pageCount == 0) {
                return 1;
            }
            return pageCount;
        }
    
        public void setPageCount(int pageCount) {
            this.pageCount = pageCount;
        }
    
        @Override
        public String toString() {
            final StringBuilder builder = new StringBuilder("begin=").append(begin).append(", end=")
                    .append(end).append(", length=").append(length).append(", totalRecords=").append(
                            totalRecords).append(", pageNo=").append(pageNo).append(", pageCount=")
                    .append(pageCount);
            return builder.toString();
        }
    }

## idea ##

### pom.xml 中配置build ###

<build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
                <plugin>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-maven-plugin</artifactId>
                    <version>1.3.4</version>
                    <dependencies>
                        <dependency>
                            <groupId>mysql</groupId>
                            <artifactId>mysql-connector-java</artifactId>
                            <version>5.1.34</version>
                        </dependency>
                        
                    </dependencies>
                    <configuration>
                        <verbose>true</verbose>
                        <overwrite>true</overwrite>
                    </configuration>
                </plugin>
            </plugins>
        </build>

## 覆盖jar ##

用上面csdn资源上下载的 mybatis-generator-core-1.3.4.jar  
覆盖 C:\\Users\\Administrator.m2\\repository\\org\\mybatis\\generator\\mybatis-generator-core\\1.3.4\\mybatis-generator-core-1.3.4.jar （如果是用的idea默认的maven的话）

## 运行 ##

![这里写图片描述][SouthEast]

### 转载请注明出处： ###

[http://blog.csdn.net/paincupid/article/details/52645610][http_blog.csdn.net_paincupid_article_details_52645610]

[http_download.csdn.net_download_paincupid_9904469]: http://download.csdn.net/download/paincupid/9904469
[20160924222510263]: /images/20220716/9e14ca755b634e37893f38785e296907.png
[20160924222526394]: /images/20220716/27ac775ceedd4c9fa14965bab0a090e0.png
[20160924222537488]: /images/20220716/b8f798a27156491e81c9b634d36dbb7a.png
[20160924222549044]: /images/20220716/cf6f9e25dd684d268c147c5d8288d98d.png
[SouthEast]: /images/20220716/e92b9802a9004829b3a6c67d5fe70f07.png
[http_blog.csdn.net_paincupid_article_details_52645610]: http://blog.csdn.net/paincupid/article/details/52645610