mybatis generator生成工具是非常强大的。基本上满足我们的很多需求了。
但是如果想像下面这样的，暂时还是木有滴：
List<PhysicalOrderInfo> selectPage(@Param("info")PhysicalOrderInfo info, @Param("pageable")Pageable pageable);
int selectCount(@Param("info")PhysicalOrderInfo info);<select id="selectPage" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from physical_order_info where 1 = 1
<if test="info.productName != null">
and product_name = #{info.productName,jdbcType=VARCHAR}
</if>
<if test="info.productNumber != null">
and product_number = #{info.productNumber,jdbcType=VARCHAR}
</if>
<if test="info.orderNumber != null">
and order_number = #{info.orderNumber,jdbcType=VARCHAR}
</if>
<if test="info.wayId != null">
and way_id = #{info.wayId,jdbcType=INTEGER}
</if>
<if test="info.updateTime != null">
and update_time = #{info.updateTime,jdbcType=TIMESTAMP}
</if>
<if test="pageable.offset >= 0 and pageable.pageSize > 0">
limit ${pageable.offset}, ${pageable.pageSize}
</if>
</select>所以可以自己简单修改一下源码，实现selectPage，selectCount等功能。
修改的比较简单粗暴，给自己使用的。如果想写好点，可以自行修改。
本文所讲源码地址：
https://github.com/daiagou/generator
也可以直接下载jar文件通过命令使用地址：
https://raw.githubusercontent.com/daiagou/generator/master/core/bin/mybatis-generator-core-1.3.7-SNAPSHOT.jar
1.dao部分：
org.mybatis.generator.api.dom.java.Interface.java，org.mybatis.generator.api.dom.java.InnerInterface.java为生成dao部分的主要代码，
可以再里面很简单的加上你要的selectPage，和selectCount方法，比如：
Interface.java中增加：
sb.append("import org.apache.ibatis.annotations.Param;");
newLine(sb);
sb.append("import org.springframework.data.domain.Pageable;");
newLine(sb);InnerInterface.java中增加：
//添加selectPage
Method selectPage = new Method("selectPage");
FullyQualifiedJavaType selectPageReturnType = new FullyQualifiedJavaType(returnType);
selectPage.setReturnType(selectPageReturnType);
newLine(sb);
sb.append(selectPage.getSelectPage());
//selectCount
Method selectCount = new Method("selectCount");
FullyQualifiedJavaType selectCountReturnType = new FullyQualifiedJavaType(returnType);
selectPage.setReturnType(selectCountReturnType);
newLine(sb);
sb.append(selectPage.getSelectCount());2.xml部分：
xml部分稍微麻烦一点
org.mybatis.generator.api.dom.xml.Document.java和org.mybatis.generator.api.dom.xml.XmlElement
为主要xml生成代码，但是直接修改没dao那么简单。
所以新增org.mybatis.generator.codegen.mybatis3.xmlmapper.elements.SelectPageElementGenerator.java
和org.mybatis.generator.codegen.mybatis3.xmlmapper.elements.SelectCountElementGenerator.java
package org.mybatis.generator.codegen.mybatis3.xmlmapper.elements;
import org.mybatis.generator.api.IntrospectedColumn;
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.ListUtilities;
import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;
/**
*
* @author abner
*
*/
public class SelectPageElementGenerator extends
AbstractXmlElementGenerator {
public SelectPageElementGenerator() {
super();
}
@Override
public void addElements(XmlElement parentElement) {
XmlElement answer = new XmlElement("select"); //$NON-NLS-1$
answer.addAttribute(new Attribute(
"id", introspectedTable.getSelectPageStatementId())); //$NON-NLS-1$
answer.addAttribute(new Attribute("resultMap", //$NON-NLS-1$
introspectedTable.getBaseResultMapId()));
context.getCommentGenerator().addComment(answer);
StringBuilder sb = new StringBuilder();
sb.append("select\n" +
" <include refid=\"Base_Column_List\" />\n" +
" from ");
sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());
sb.append(" where 1 = 1");
answer.addElement(new TextElement(sb.toString()));
for (IntrospectedColumn introspectedColumn : ListUtilities.removeGeneratedAlwaysColumns(introspectedTable
.getNonPrimaryKeyColumns())) {
sb.setLength(0);
sb.append("record.");
sb.append(introspectedColumn.getJavaProperty());
sb.append(" != null"); //$NON-NLS-1$
XmlElement isNotNullElement = new XmlElement("if"); //$NON-NLS-1$
isNotNullElement.addAttribute(new Attribute("test", sb.toString())); //$NON-NLS-1$
answer.addElement(isNotNullElement);
sb.setLength(0);
sb.append("and ");
sb.append(MyBatis3FormattingUtilities
.getEscapedColumnName(introspectedColumn));
sb.append(" = "); //$NON-NLS-1$
sb.append(MyBatis3FormattingUtilities
.getParameterPageClause(introspectedColumn));
isNotNullElement.addElement(new TextElement(sb.toString()));
}
sb.setLength(0);
sb.append("<if test=\"pageable!=null\">\n" +
" <if test=\"pageable.offset = 0 and pageable.pageSize > 0\">\n" +
" limit ${pageable.pageSize}\n" +
" </if>\n" +
"\t <if test=\"pageable.offset > 0 and pageable.pageSize > 0\">\n" +
" limit ${pageable.offset}, ${pageable.pageSize}\n" +
" </if>\n" +
" </if>");
answer.addElement(new TextElement(sb.toString()));
if (context.getPlugins()
.sqlMapUpdateByPrimaryKeySelectiveElementGenerated(answer,
introspectedTable)) {
parentElement.addElement(answer);
}
}
}
package org.mybatis.generator.codegen.mybatis3.xmlmapper.elements;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;
import org.mybatis.generator.codegen.mybatis3.ListUtilities;
import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;
/**
*
* @author abner
*
*/
public class SelectCountElementGenerator extends
AbstractXmlElementGenerator {
public SelectCountElementGenerator() {
super();
}
@Override
public void addElements(XmlElement parentElement) {
XmlElement answer = new XmlElement("select"); //$NON-NLS-1$
answer.addAttribute(new Attribute(
"id", introspectedTable.getSelectCountStatementId())); //$NON-NLS-1$
answer.addAttribute(new Attribute("resultMap", //$NON-NLS-1$
"java.lang.Integer"));
context.getCommentGenerator().addComment(answer);
StringBuilder sb = new StringBuilder();
sb.append("select count(1)\n" +
" from ");
sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());
sb.append(" where 1 = 1");
answer.addElement(new TextElement(sb.toString()));
for (IntrospectedColumn introspectedColumn : ListUtilities.removeGeneratedAlwaysColumns(introspectedTable
.getNonPrimaryKeyColumns())) {
sb.setLength(0);
sb.append("record.");
sb.append(introspectedColumn.getJavaProperty());
sb.append(" != null"); //$NON-NLS-1$
XmlElement isNotNullElement = new XmlElement("if"); //$NON-NLS-1$
isNotNullElement.addAttribute(new Attribute("test", sb.toString())); //$NON-NLS-1$
answer.addElement(isNotNullElement);
sb.setLength(0);
sb.append("and ");
sb.append(MyBatis3FormattingUtilities
.getEscapedColumnName(introspectedColumn));
sb.append(" = "); //$NON-NLS-1$
sb.append(MyBatis3FormattingUtilities
.getParameterPageClause(introspectedColumn));
isNotNullElement.addElement(new TextElement(sb.toString()));
}
if (context.getPlugins()
.sqlMapUpdateByPrimaryKeySelectiveElementGenerated(answer,
introspectedTable)) {
parentElement.addElement(answer);
}
}
}
//添加selectPage,selectCount
addSelectPageElement(answer);
addSelectCountElement(answer); protected void addSelectPageElement(
XmlElement parentElement) {
if (introspectedTable.getRules().generateUpdateByPrimaryKeySelective()) {
AbstractXmlElementGenerator elementGenerator = new SelectPageElementGenerator();
initializeAndExecuteGenerator(elementGenerator, parentElement);
}
}
protected void addSelectCountElement(
XmlElement parentElement) {
if (introspectedTable.getRules().generateUpdateByPrimaryKeySelective()) {
AbstractXmlElementGenerator elementGenerator = new SelectCountElementGenerator();
initializeAndExecuteGenerator(elementGenerator, parentElement);
}
}