/*
* 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 extends
AbstractJavaMapperMethodGenerator {
public UpdateByPrimaryKeyWithoutBLOBsMethodGenerator() {
super();
}
@Override
public void addInterfaceElements(Interface interfaze) {
Set<FullyQualifiedJavaType> importedTypes = new TreeSet<FullyQualifiedJavaType>();
FullyQualifiedJavaType parameterType = new FullyQualifiedJavaType(
introspectedTable.getBaseRecordType());
importedTypes.add(parameterType);
//新增一个方法
Method method = new Method();
//添加方法修饰符PUBLIC
method.setVisibility(JavaVisibility.PUBLIC);
//设置返回值，这里我用的是自定义的void，无返回值方法 getVoidInstance（）
//FullyQualifiedJavaType类中可以自定义返回值方法，大家可以自己进去添加
//不想那么麻烦的话，可以 new FullyQualifiedJavaType("void") ， 构造函数写上返回类型就行了
method.setReturnType(FullyQualifiedJavaType.getVoidInstance());
//设置方法名，同样可以自己进去看
method.setName(introspectedTable.getUpdateByPrimaryKeyStatementId());
//method.addParameter(new Parameter(parameterType, "record")); //$NON-NLS-1$
FullyQualifiedJavaType mapType=FullyQualifiedJavaType.getMyMapInstance();
//方法的参数，这里是Map类型的dateMap参数
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 extends
AbstractXmlElementGenerator {
//private boolean isSimple;
public UpdateByPrimaryKeyWithoutBLOBsElementGenerator(boolean isSimple) {
super();
//this.isSimple = isSimple;
}
@Override
public void addElements(XmlElement parentElement) {
//update标签(方法最外层)
XmlElement answer = new XmlElement("update"); //$NON-NLS-1$
//update标签的属性
answer.addAttribute(new Attribute(
"id", introspectedTable.getUpdateByPrimaryKeyStatementId())); //$NON-NLS-1$
answer.addAttribute(new Attribute("parameterType", //$NON-NLS-1$
"Map"));
//把标签加进去
context.getCommentGenerator().addComment(answer);
StringBuilder sb = new StringBuilder();
sb.append("update "); //$NON-NLS-1$
sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());
//标签内容，即文本元素
answer.addElement(new TextElement(sb.toString()));
sb.setLength(0);
//set标签
XmlElement setElement = new XmlElement("set"); //$NON-NLS-1$
//获取数据库表中的所有字段
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标签
XmlElement ifElement = new XmlElement("if"); //$NON-NLS-1$
//字段名
String str=MyBatis3FormattingUtilities
.getEscapedColumnName(introspectedColumn);
//if标签添加属性test，值为 字段 !=null and 字段!=''
ifElement.addAttribute(new Attribute("test",str+" != null and "+str+"!='' "));
//if标签内容 ，文本元素，给字段赋予即将修改的值
sb.append(MyBatis3FormattingUtilities
.getEscapedColumnName(introspectedColumn));
sb.append(" = "); //$NON-NLS-1$
sb.append(MyBatis3FormattingUtilities
.getParameterClause(introspectedColumn));
if (iter.hasNext()) {
sb.append(',');
}
//if标签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(修改的字段前提条件)
XmlElement whereElement =new XmlElement("where");
for (IntrospectedColumn introspectedColumn : introspectedTable
.getPrimaryKeyColumns()) {//遍历表中字段进行判断
sb.setLength(0);
sb.append(MyBatis3FormattingUtilities
.getEscapedColumnName(introspectedColumn));
sb.append(" = "); //$NON-NLS-1$
sb.append(MyBatis3FormattingUtilities
.getParameterClause(introspectedColumn));
whereElement.addElement(new TextElement(sb.toString()));
}
//方法中最外层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/ 目录下
<?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 --> 
<!-- 指定数据连接驱动jar地址 --> 
<classPathEntry location="E:\eclipse_workspace\testMybatis\mysql-connector-java-5.1.13-bin.jar" /> 
<!-- 一个数据库一个context --> 
<context id="infoGuardian" targetRuntime="MyBatis3"> 
<!-- 注释 --> 
<commentGenerator > 
<property name="suppressAllComments" value="true"/><!-- 是否取消注释 --> 
<property name="suppressDate" value="true" /> <!-- 是否生成注释代时间戳--> 
</commentGenerator> 
<!-- jdbc连接 --> 
<jdbcConnection driverClass="com.mysql.jdbc.Driver" 
connectionURL="jdbc:mysql://localhost:3306/login?characterEncoding=UTF-8" userId="root" 
password="root" /> 
<!-- 类型转换 --> 
<javaTypeResolver> 
<!-- 是否使用bigDecimal， false可自动转化以下类型（Long, Integer, Short, etc.） --> 
<property name="forceBigDecimals" value="false"/> 
</javaTypeResolver> 
<!-- 生成实体类地址 --> 
<javaModelGenerator targetPackage="pojo" 
targetProject="mybatis3" > 
<!-- 是否在当前路径下新加一层schema,eg：fase路径cn.ffcs.test.domain"， true:cn.ffcs.test.domain".[schemaName] --> 
<property name="enableSubPackages" value="true"/> 
<!-- 是否针对string类型的字段在set的时候进行trim调用 --> 
<property name="trimStrings" value="true"/> 
</javaModelGenerator> 
<!-- 生成mapxml文件 --> 
<sqlMapGenerator targetPackage="mapper" 
targetProject="mybatis3" > 
<!-- 是否在当前路径下新加一层schema,eg：fase路径cn.ffcs.test.domain"， true:cn.ffcs.test.domain".[schemaName] --> 
<property name="enableSubPackages" value="true" /> 
</sqlMapGenerator> 
<!-- 生成mapxml对应client，也就是接口dao --> 
<javaClientGenerator type="XMLMAPPER" targetPackage="mapper" 
targetProject="mybatis3"> 
<!-- 是否在当前路径下新加一层schema,eg：fase路径cn.ffcs.test.domain"， true:cn.ffcs.test.domain".[schemaName] --> 
<property name="enableSubPackages" value="true" /> 
</javaClientGenerator> 
<!-- 配置表信息，这里没生成一张表，这里需要改变一次对应表名 --> 
<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 Team
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.
-->
<!--
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 file
for use by the systests projects - so we can gather
consolidated 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>