MyBatis Generator生成DAO 的时候，生成的类都是没有序列化的。
还以为要手工添加（开始是手工添加的），今天遇到分页的问题，才发现生成的时候可以添加插件。既然分页可以有插件，序列化是不是也有呢。
果然SerializablePlugin，已经给我们提供好了。
<plugin type="org.mybatis.generator.plugins.SerializablePlugin" />马上高端大气了起来。每个model对象都乖乖的带上了Serializable接口。
无奈只有model对象是不够的，做分布式开发的话，Example对象也必须要序列化。
于是下载了SerializablePlugin的源码，model可以有，Example肯定也可以有。不出所料稍作修改就加上了。（直接用原来的源码添加了自己的代码）
import org.mybatis.generator.api.IntrospectedTable;import org.mybatis.generator.api.PluginAdapter;import org.mybatis.generator.api.dom.java.*;import java.util.List;import java.util.Properties;/** * Created by tiantao on 15-7-1. */public class SerializablePlugin extends PluginAdapter {private FullyQualifiedJavaType serializable;private FullyQualifiedJavaType gwtSerializable;private boolean addGWTInterface;private boolean suppressJavaInterface;public SerializablePlugin() {super();serializable = new FullyQualifiedJavaType("java.io.Serializable"); //$NON-NLS-1$gwtSerializable = new FullyQualifiedJavaType("com.google.gwt.user.client.rpc.IsSerializable"); //$NON-NLS-1$}public boolean validate(List<String> warnings) {// this plugin is always validreturn true;}@Overridepublic void setProperties(Properties properties) {super.setProperties(properties);addGWTInterface = Boolean.valueOf(properties.getProperty("addGWTInterface")); //$NON-NLS-1$suppressJavaInterface = Boolean.valueOf(properties.getProperty("suppressJavaInterface")); //$NON-NLS-1$}@Overridepublic boolean modelBaseRecordClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {makeSerializable(topLevelClass, introspectedTable);return true;}@Overridepublic boolean modelPrimaryKeyClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {makeSerializable(topLevelClass, introspectedTable);return true;}@Overridepublic boolean modelRecordWithBLOBsClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {makeSerializable(topLevelClass, introspectedTable);return true;}/*** 添加给Example类序列化的方法* @param topLevelClass* @param introspectedTable* @return*/@Overridepublic boolean modelExampleClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable){makeSerializable(topLevelClass, introspectedTable);return true;}protected void makeSerializable(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {if (addGWTInterface) {topLevelClass.addImportedType(gwtSerializable);topLevelClass.addSuperInterface(gwtSerializable);}if (!suppressJavaInterface) {topLevelClass.addImportedType(serializable);topLevelClass.addSuperInterface(serializable);Field field = new Field();field.setFinal(true);field.setInitializationString("1L"); //$NON-NLS-1$field.setName("serialVersionUID"); //$NON-NLS-1$field.setStatic(true);field.setType(new FullyQualifiedJavaType("long")); //$NON-NLS-1$field.setVisibility(JavaVisibility.PRIVATE);context.getCommentGenerator().addFieldComment(field, introspectedTable);topLevelClass.addField(field);}}}
哇咔咔，太好用了。Example都加上了。
不过问题还没有完，Example里还有内部类，如果不序列化还是会报错。
这次明显更刚才的套路不一样了。没有抱太大希望。
无意间发现了另一个插件类，也是包里自带的。发现了宝藏，这里竟然有对内部类的操作。
import java.util.List;import org.mybatis.generator.api.PluginAdapter;import org.mybatis.generator.api.IntrospectedColumn;import org.mybatis.generator.api.IntrospectedTable;import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;import org.mybatis.generator.api.dom.java.InnerClass;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.codegen.ibatis2.Ibatis2FormattingUtilities;/** * This plugin demonstrates adding methods to the example class to enable * case-insensitive LIKE searches. It shows hows to construct new methods and * add them to an existing class. * * This plugin only adds methods for String fields mapped to a JDBC character * type (CHAR, VARCHAR, etc.) * * @author Jeff Butler * */public class CaseInsensitiveLikePlugin extends PluginAdapter {/****/public CaseInsensitiveLikePlugin() {super();}public boolean validate(List<String> warnings) {return true;}@Overridepublic boolean modelExampleClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {InnerClass criteria = null;// first, find the Criteria inner classfor (InnerClass innerClass : topLevelClass.getInnerClasses()) {if ("GeneratedCriteria".equals(innerClass.getType().getShortName())) { //$NON-NLS-1$criteria = innerClass;break;}}if (criteria == null) {// can't find the inner class for some reason, bail out.return true;}for (IntrospectedColumn introspectedColumn : introspectedTable.getNonBLOBColumns()) {if (!introspectedColumn.isJdbcCharacterColumn()|| !introspectedColumn.isStringColumn()) {continue;}Method method = new Method();method.setVisibility(JavaVisibility.PUBLIC);method.addParameter(new Parameter(introspectedColumn.getFullyQualifiedJavaType(), "value")); //$NON-NLS-1$StringBuilder sb = new StringBuilder();sb.append(introspectedColumn.getJavaProperty());sb.setCharAt(0, Character.toUpperCase(sb.charAt(0)));sb.insert(0, "and"); //$NON-NLS-1$sb.append("LikeInsensitive"); //$NON-NLS-1$method.setName(sb.toString());method.setReturnType(FullyQualifiedJavaType.getCriteriaInstance());sb.setLength(0);sb.append("addCriterion(\&;upper("); //$NON-NLS-1$sb.append(Ibatis2FormattingUtilities.getAliasedActualColumnName(introspectedColumn));sb.append(") like\&;, value.toUpperCase(), \&;"); //$NON-NLS-1$sb.append(introspectedColumn.getJavaProperty());sb.append("\&;);"); //$NON-NLS-1$method.addBodyLine(sb.toString());method.addBodyLine("return (Criteria) this;"); //$NON-NLS-1$criteria.addMethod(method);}return true;}}把原来的方法再优化一下下。import org.mybatis.generator.api.IntrospectedTable;import org.mybatis.generator.api.PluginAdapter;import org.mybatis.generator.api.dom.java.*;import java.util.List;import java.util.Properties;/** * Created by tiantao on 15-7-1. */public class SerializablePlugin extends PluginAdapter {private FullyQualifiedJavaType serializable;private FullyQualifiedJavaType gwtSerializable;private boolean addGWTInterface;private boolean suppressJavaInterface;public SerializablePlugin() {super();serializable = new FullyQualifiedJavaType("java.io.Serializable"); //$NON-NLS-1$gwtSerializable = new FullyQualifiedJavaType("com.google.gwt.user.client.rpc.IsSerializable"); //$NON-NLS-1$}public boolean validate(List<String> warnings) {// this plugin is always validreturn true;}@Overridepublic void setProperties(Properties properties) {super.setProperties(properties);addGWTInterface = Boolean.valueOf(properties.getProperty("addGWTInterface")); //$NON-NLS-1$suppressJavaInterface = Boolean.valueOf(properties.getProperty("suppressJavaInterface")); //$NON-NLS-1$}@Overridepublic boolean modelBaseRecordClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {makeSerializable(topLevelClass, introspectedTable);return true;}@Overridepublic boolean modelPrimaryKeyClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {makeSerializable(topLevelClass, introspectedTable);return true;}@Overridepublic boolean modelRecordWithBLOBsClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {makeSerializable(topLevelClass, introspectedTable);return true;}/*** 添加给Example类序列化的方法* @param topLevelClass* @param introspectedTable* @return*/@Overridepublic boolean modelExampleClassGenerated(TopLevelClass topLevelClass,IntrospectedTable introspectedTable){makeSerializable(topLevelClass, introspectedTable);for (InnerClass innerClass : topLevelClass.getInnerClasses()) {if ("GeneratedCriteria".equals(innerClass.getType().getShortName())) { //$NON-NLS-1$innerClass.addSuperInterface(serializable);}if ("Criteria".equals(innerClass.getType().getShortName())) { //$NON-NLS-1$innerClass.addSuperInterface(serializable);}if ("Criterion".equals(innerClass.getType().getShortName())) { //$NON-NLS-1$innerClass.addSuperInterface(serializable);}}return true;}protected void makeSerializable(TopLevelClass topLevelClass,IntrospectedTable introspectedTable) {if (addGWTInterface) {topLevelClass.addImportedType(gwtSerializable);topLevelClass.addSuperInterface(gwtSerializable);}if (!suppressJavaInterface) {topLevelClass.addImportedType(serializable);topLevelClass.addSuperInterface(serializable);Field field = new Field();field.setFinal(true);field.setInitializationString("1L"); //$NON-NLS-1$field.setName("serialVersionUID"); //$NON-NLS-1$field.setStatic(true);field.setType(new FullyQualifiedJavaType("long")); //$NON-NLS-1$field.setVisibility(JavaVisibility.PRIVATE);context.getCommentGenerator().addFieldComment(field, introspectedTable);topLevelClass.addField(field);}}}
哇咔咔，，成功了。
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