/** Copyright 2009 The Apache Software Foundation** 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 org.mybatis.generator.codegen.mybatis3.javamapper.elements;import java.util.Set;import java.util.TreeSet;import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;import org.mybatis.generator.api.dom.java.Interface;import org.mybatis.generator.api.dom.java.JavaVisibility;import org.mybatis.generator.api.dom.java.Method;import org.mybatis.generator.api.dom.java.Parameter;/*** * @author Jeff Butler* */public class UpdateByPrimaryKeyWithoutBLOBsMethodGenerator extendsAbstractJavaMapperMethodGenerator {public UpdateByPrimaryKeyWithoutBLOBsMethodGenerator() {super();}@Overridepublic void addInterfaceElements(Interface interfaze) {Set<FullyQualifiedJavaType> importedTypes = new TreeSet<FullyQualifiedJavaType>();FullyQualifiedJavaType parameterType = new FullyQualifiedJavaType(introspectedTable.getBaseRecordType());importedTypes.add(parameterType);//新增一個方法Method method = new Method();//添加方法修飾符PUBLICmethod.setVisibility(JavaVisibility.PUBLIC);//設置返回值，這里我用的是自定義的void，無返回值方法 getVoidInstance（）//FullyQualifiedJavaType類中可以自定義返回值方法，大家可以自己進去添加//不想那么麻煩的話，可以 new FullyQualifiedJavaType("void") ， 構造函數寫上返回類型就行了method.setReturnType(FullyQualifiedJavaType.getVoidInstance());//設置方法名，同樣可以自己進去看method.setName(introspectedTable.getUpdateByPrimaryKeyStatementId());//method.addParameter(new Parameter(parameterType, "record")); //$NON-NLS-1$FullyQualifiedJavaType mapType=FullyQualifiedJavaType.getMyMapInstance();//方法的參數，這里是Map類型的dateMap參數Parameter parameter = new Parameter(mapType, "dataMap");method.addParameter(parameter);context.getCommentGenerator().addGeneralMethodComment(method,introspectedTable);addMapperAnnotations(interfaze, method);if (context.getPlugins().clientUpdateByPrimaryKeyWithoutBLOBsMethodGenerated(method,interfaze, introspectedTable)) {interfaze.addImportedTypes(importedTypes);interfaze.addMethod(method);}}public void addMapperAnnotations(Interface interfaze, Method method) {return;}} 

/** Copyright 2009 The Apache Software Foundation** 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 org.mybatis.generator.codegen.mybatis3.xmlmapper.elements;import java.util.Iterator;import java.util.List;import org.mybatis.generator.api.IntrospectedColumn;import org.mybatis.generator.api.dom.OutputUtilities;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 org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;/*** * @author Jeff Butler* */public class UpdateByPrimaryKeyWithoutBLOBsElementGenerator extendsAbstractXmlElementGenerator {//private boolean isSimple;public UpdateByPrimaryKeyWithoutBLOBsElementGenerator(boolean isSimple) {super();//this.isSimple = isSimple;}@Overridepublic void addElements(XmlElement parentElement) {//update標簽(方法最外層)XmlElement answer = new XmlElement("update"); //$NON-NLS-1$//update標簽的屬性answer.addAttribute(new Attribute("id", introspectedTable.getUpdateByPrimaryKeyStatementId())); //$NON-NLS-1$answer.addAttribute(new Attribute("parameterType", //$NON-NLS-1$"Map"));//把標簽加進去context.getCommentGenerator().addComment(answer);StringBuilder sb = new StringBuilder();sb.append("update "); //$NON-NLS-1$sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());//標簽內容，即文本元素answer.addElement(new TextElement(sb.toString()));sb.setLength(0);//set標簽XmlElement setElement = new XmlElement("set"); //$NON-NLS-1$//獲取數據庫表中的所有字段List <IntrospectedColumn> cols=introspectedTable.getAllColumns();//迭代java.util.Iterator<IntrospectedColumn> iter =cols.iterator();while (iter.hasNext()) {//迭代//迭代到某一字段IntrospectedColumn introspectedColumn = iter.next();//if標簽XmlElement ifElement = new XmlElement("if"); //$NON-NLS-1$//字段名String str=MyBatis3FormattingUtilities.getEscapedColumnName(introspectedColumn);//if標簽添加屬性test，值為 字段 !=null and 字段!=''ifElement.addAttribute(new Attribute("test",str+" != null and "+str+"!='' "));//if標簽內容 ，文本元素，給字段賦予即將修改的值sb.append(MyBatis3FormattingUtilities.getEscapedColumnName(introspectedColumn));sb.append(" = "); //$NON-NLS-1$sb.append(MyBatis3FormattingUtilities.getParameterClause(introspectedColumn));if (iter.hasNext()) {sb.append(',');}//if標簽添加上面的文本元素ifElement.addElement(new TextElement(sb.toString()));if (iter.hasNext()) {sb.setLength(0);OutputUtilities.xmlIndent(sb, 1);}setElement.addElement(ifElement);}//where元素(修改的字段前提條件)XmlElement whereElement =new XmlElement("where");for (IntrospectedColumn introspectedColumn : introspectedTable.getPrimaryKeyColumns()) {//遍歷表中字段進行判斷sb.setLength(0);sb.append(MyBatis3FormattingUtilities.getEscapedColumnName(introspectedColumn));sb.append(" = "); //$NON-NLS-1$sb.append(MyBatis3FormattingUtilities.getParameterClause(introspectedColumn));whereElement.addElement(new TextElement(sb.toString()));}//方法中最外層xml元素 update元素添加set元素和where元素answer.addElement(setElement);answer.addElement(whereElement);if (context.getPlugins().sqlMapUpdateByPrimaryKeyWithoutBLOBsElementGenerated(answer,introspectedTable)) {parentElement.addElement(answer);}}} 

generatorConfig.xml //先配置xml 放在src/main/resources/ 目錄下<?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> <!-- 引入配置文件 --> <!-- 指定數據連接驅動jar地址 --> <classPathEntry location="E:/eclipse_workspace/testMybatis/mysql-connector-java-5.1.13-bin.jar" /> <!-- 一個數據庫一個context --> <context id="infoGuardian" targetRuntime="MyBatis3"> <!-- 注釋 --> <commentGenerator > <property name="suppressAllComments" value="true"/><!-- 是否取消注釋 --> <property name="suppressDate" value="true" /> <!-- 是否生成注釋代時間戳--> </commentGenerator> <!-- jdbc連接 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/login?characterEncoding=UTF-8" userId="root" password="root" /> <!-- 類型轉換 --> <javaTypeResolver> <!-- 是否使用bigDecimal， false可自動轉化以下類型（Long, Integer, Short, etc.） --> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <!-- 生成實體類地址 --> <javaModelGenerator targetPackage="pojo" targetProject="mybatis3" > <!-- 是否在當前路徑下新加一層schema,eg：fase路徑cn.ffcs.test.domain"， true:cn.ffcs.test.domain".[schemaName] --> <property name="enableSubPackages" value="true"/> <!-- 是否針對string類型的字段在set的時候進行trim調用 --> <property name="trimStrings" value="true"/> </javaModelGenerator> <!-- 生成mapxml文件 --> <sqlMapGenerator targetPackage="mapper" targetProject="mybatis3" > <!-- 是否在當前路徑下新加一層schema,eg：fase路徑cn.ffcs.test.domain"， true:cn.ffcs.test.domain".[schemaName] --> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <!-- 生成mapxml對應client，也就是接口dao --> <javaClientGenerator type="XMLMAPPER" targetPackage="mapper" targetProject="mybatis3"> <!-- 是否在當前路徑下新加一層schema,eg：fase路徑cn.ffcs.test.domain"， true:cn.ffcs.test.domain".[schemaName] --> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!-- 配置表信息，這里沒生成一張表，這里需要改變一次對應表名 --> <table tableName="login" domainObjectName="Login" enableCountByExample="false" enableDeleteByExample="false" enableSelectByExample="false" enableUpdateByExample="false"> </table> </context> </generatorConfiguration> 

package tse;import static org.junit.Assert.assertEquals;import java.io.File;import java.util.ArrayList;import java.util.List;import org.mybatis.generator.api.MyBatisGenerator;import org.mybatis.generator.config.Configuration;import org.mybatis.generator.config.xml.ConfigurationParser;import org.mybatis.generator.internal.DefaultShellCallback;public class StartUp {public static void main(String []args)throws Exception{List<String> warnings = new ArrayList<String>();File configFile=new File(StartUp.class.getResource("/generatorConfig.xml").toURI());ConfigurationParser cp = new ConfigurationParser(warnings);Configuration config = cp.parseConfiguration(configFile);DefaultShellCallback shellCallback = new DefaultShellCallback(true);MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, shellCallback, warnings);myBatisGenerator.generate(null);System.out.println(warnings);}} 

<?xml version="1.0" encoding="UTF-8"?><!--Copyright 2009-2011 The MyBatis TeamLicensed 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 athttp://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing, softwaredistributed 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 andlimitations under the License.--><!--version: $Id: pom.xml 4114 2011-11-27 19:03:32Z simone.tripodi $--><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.mybatis.generator</groupId><artifactId>mybatis-generator</artifactId><version>1.3.2</version></parent><artifactId>mybatis-generator-core</artifactId><packaging>jar</packaging><name>MyBatis Generator Core</name><build><!-- this build creates and installs an instrumented JAR filefor use by the systests projects - so we can gatherconsolidated coverage information--><plugins><!-- <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-site-plugin</artifactId><executions><execution><phase>prepare-package</phase><goals><goal>site</goal></goals></execution></executions></plugin> --><!-- <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-source-plugin</artifactId><executions><execution><phase>prepare-package</phase><goals><goal>jar-no-fork</goal></goals></execution></executions></plugin> --><!-- <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-source-plugin</artifactId><version>2.2.1</version><executions><execution><id>attach-sources</id><goals><goal>jar</goal></goals><configuration><includes><include>**/org/**</include></includes></configuration></execution></executions></plugin> --><!-- <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-javadoc-plugin</artifactId><executions><execution><phase>prepare-package</phase><goals><goal>jar</goal></goals></execution></executions></plugin> --><plugin><groupId>org.codehaus.mojo</groupId><artifactId>cobertura-maven-plugin</artifactId><executions><execution><id>cobertura-instrument</id><phase>pre-integration-test</phase><goals><goal>instrument</goal></goals></execution></executions> </plugin><!-- <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-jar-plugin</artifactId><configuration><archive><manifest><mainClass>org.mybatis.generator.api.ShellRunner</mainClass></manifest></archive></configuration><executions><execution><id>cobertura-jar</id><phase>integration-test</phase><goals><goal>jar</goal></goals><configuration><classifier>cobertura</classifier><classesDirectory>${basedir}/target/generated-classes/cobertura</classesDirectory></configuration></execution></executions></plugin> --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-jar-plugin</artifactId><version>2.4</version><executions><execution><id>attach-jar</id><phase>integration-test</phase><goals><goal>jar</goal></goals></execution></executions><configuration><archive><manifest><addClasspath>true</addClasspath><classpathPrefix></classpathPrefix><mainClass>org.mybatis.generator.api.ShellRunner</mainClass></manifest></archive><includes><include>**/org/**</include></includes></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-install-plugin</artifactId><executions><execution><id>cobertura-install</id><phase>integration-test</phase><goals><goal>install</goal></goals><configuration><classifier>cobertura</classifier></configuration></execution></executions> </plugin><!-- <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-assembly-plugin</artifactId><configuration><descriptors><descriptor>${basedir}/src/main/assembly/src.xml</descriptor></descriptors></configuration> <executions><execution><id>bundle</id><goals><goal>single</goal></goals><phase>package</phase></execution></executions></plugin> --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-assembly-plugin</artifactId><configuration><appendAssemblyId>false</appendAssemblyId><descriptors><descriptor>${basedir}/src/main/assembly/src.xml</descriptor></descriptors></configuration> <executions><execution><id>make-assembly</id><phase>package</phase><goals><goal>single</goal></goals></execution></executions></plugin><plugin><groupId>com.googlecode.maven-gcu-plugin</groupId><artifactId>maven-gcu-plugin</artifactId><executions><execution><phase>deploy</phase><goals><goal>upload</goal></goals><configuration><uploads><upload><file>${project.build.directory}/${project.artifactId}-${project.version}-bundle.zip</file><summary>MyBatis Generator ${project.version}</summary><labels><label>Featured</label><label>Type-Archive</label><label>Product-Generator</label><label>Version-${project.version}</label></labels></upload></uploads></configuration></execution></executions></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-release-plugin</artifactId><configuration><arguments>-Prelease,gupload</arguments></configuration></plugin></plugins></build><reporting><plugins><plugin><groupId>org.codehaus.mojo</groupId><artifactId>jdepend-maven-plugin</artifactId><version>2.0-beta-2</version></plugin><plugin><groupId>org.codehaus.mojo</groupId><artifactId>cobertura-maven-plugin</artifactId></plugin></plugins></reporting><dependencies><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><scope>provided</scope></dependency><dependency><groupId>org.apache.ant</groupId><artifactId>ant</artifactId><scope>provided</scope></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><scope>test</scope></dependency><dependency><groupId>org.hsqldb</groupId><artifactId>hsqldb</artifactId><scope>test</scope></dependency><dependency><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><version>2.12</version></dependency></dependencies><scm><url>https://mybatis.googlecode.com/svn/sub-projects/generator/tags/mybatis-generator-1.3.2/mybatis-generator-core</url><connection>scm:svn:https://mybatis.googlecode.com/svn/sub-projects/generator/tags/mybatis-generator-1.3.2/mybatis-generator-core</connection><developerConnection>scm:svn:https://mybatis.googlecode.com/svn/sub-projects/generator/tags/mybatis-generator-1.3.2/mybatis-generator-core</developerConnection></scm> </project> 

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd"><id>bundle</id><formats><format>zip</format></formats><fileSets><fileSet><directory>src/main/resources</directory><outputDirectory>/</outputDirectory><includes><include>generatorConfig.xml</include></includes><excludes><exclude>log4j.properties</exclude><exclude>src.xml</exclude></excludes></fileSet><fileSet><directory>src/main/scripts</directory><outputDirectory>/</outputDirectory><includes><include>run.bat</include></includes></fileSet><fileSet><directory>${project.build.directory}</directory><outputDirectory>/</outputDirectory><includes><include>${project.artifactId}-${project.version}.jar</include></includes></fileSet><fileSet><directory>${project.build.directory}</directory><outputDirectory>/</outputDirectory><includes><include>${project.artifactId}-${project.version}-sources.jar</include></includes></fileSet></fileSets></assembly>