标签：ade 放弃 string 依赖 lstat his 链接 ima dtd
很久以前便听过mybatis-generator的大名，但是奈何中间几次尝试都以失败告终，最后放弃努力继续手搓底层。最近终于又提起动力，硬着头皮攻克了难关，从此以后告别手搓底层的地狱。
使用的是springboot2，jdk1.8，idea。
<!--mybatise-generator--> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <!--在此处指定配置文件位置--> <configurationFile>src/main/resources/generatorConfig/generatorConfig.xml</configurationFile> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> <!--mybatise-generator--> <dependencies> <!--在此处引入所需依赖--> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.2</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> </dependency> </dependencies> </plugin>
注意：
mybatis-generator版本如果和mysql差距過大，可能在生成代碼過程中引起報錯
1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE generatorConfiguration 3 PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" 4 "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"> 5 ? 6 <generatorConfiguration> 7 <!--注意这里的targetRuntime="MyBatis3Simple"，指定了不生成Example相关内容--> 8 <context id="MysqlTables" targetRuntime="MyBatis3Simple"> 9 ? 10 <commentGenerator> 11 <property name="suppressDate" value="true"/> 12 <!-- 是否去除自动生成的注释 true：是 ： false:否 --> 13 <property name="suppressAllComments" value="true"/> 14 </commentGenerator> 15 ? 16 <!-- jdbc链接信息 --> 17 <jdbcConnection driverClass="com.mysql.jdbc.Driver" 18 connectionURL="jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8" 19 userId="root" password="123456"> 20 </jdbcConnection> 21 ? 22 <javaTypeResolver> 23 <property name="forceBigDecimals" value="false"/> 24 </javaTypeResolver> 25 ? 26 <!-- 生成PO类的位置 --> 27 <javaModelGenerator targetPackage="com.huang.po" 28 targetProject="src/main/java"> 29 <property name="enableSubPackages" value="true"/> 30 <property name="trimStrings" value="true"/> 31 </javaModelGenerator> 32 ? 33 <!-- mapper映射文件生成的位置 --> 34 <sqlMapGenerator targetPackage="mapper" 35 targetProject="src/main/resources"> 36 <property name="enableSubPackages" value="true"/> 37 </sqlMapGenerator> 38 ? 39 <!-- mapper接口生成的位置 --> 40 <javaClientGenerator type="XMLMAPPER" 41 targetPackage="com.party.community.template" 42 targetProject="src/main/java"> 43 <property name="enableSubPackages" value="true"/> 44 </javaClientGenerator> 45 ? 46 <!-- 指定要生成的表，主鍵，po類名 --> 47 <table tableName="User" domainObjectName="User"> 48 <property name="useActualColumnNames" value="true"/> 49 <generatedKey column="u_id" sqlStatement="MySql" identity="true"/> 50 </table> 51 ? 52 </context> 53 </generatorConfiguration>
注意：
1.存放生成代碼的指定包或者文件夾可以不用提前建好，只要路徑沒錯插件會順便一起建好
2.根據指定路徑的不同，部分生成代碼可能會需要更改。比如映射配置文件，
<mapper namespace="com.party.community.mapper.User_noticeMapper" >
namespace的生成是根據上面的配置而生成的，如果你在生成代碼後還想要移動mapper的話，要記得修改 路徑
打開Maven菜單，點擊Plugins裡的mybatis-generator，即可自動生成（如果沒出問題的話）
1、生成的po，已写好get和set方法
package com.party.community.po; import org.springframework.stereotype.Component; import java.util.Date; @Component public class User { private String u_idcard; private String u_unsername; private String u_tel; private String u_pwd; private String u_avator; private String u_sex; private Date u_birthday; private String u_history; private String u_remark; public String getU_idcard() { return u_idcard; } public void setU_idcard(String u_idcard) { this.u_idcard = u_idcard == null ? null : u_idcard.trim(); } public String getU_unsername() { return u_unsername; } public void setU_unsername(String u_unsername) { this.u_unsername = u_unsername == null ? null : u_unsername.trim(); } public String getU_tel() { return u_tel; } public void setU_tel(String u_tel) { this.u_tel = u_tel == null ? null : u_tel.trim(); } public String getU_pwd() { return u_pwd; } public void setU_pwd(String u_pwd) { this.u_pwd = u_pwd == null ? null : u_pwd.trim(); } public String getU_avator() { return u_avator; } public void setU_avator(String u_avator) { this.u_avator = u_avator == null ? null : u_avator.trim(); } public String getU_sex() { return u_sex; } public void setU_sex(String u_sex) { this.u_sex = u_sex == null ? null : u_sex.trim(); } public Date getU_birthday() { return u_birthday; } public void setU_birthday(Date u_birthday) { this.u_birthday = u_birthday; } public String getU_history() { return u_history; } public void setU_history(String u_history) { this.u_history = u_history == null ? null : u_history.trim(); } public String getU_remark() { return u_remark; } public void setU_remark(String u_remark) { this.u_remark = u_remark == null ? null : u_remark.trim(); } }
2、映射文件和mapper，已经生成了基本的增删改查方法
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace="com.party.community.mapper.UserMapper" > <resultMap id="BaseResultMap" type="com.party.community.po.User" > <id column="u_idcard" property="u_idcard" jdbcType="VARCHAR" /> <result column="u_unsername" property="u_unsername" jdbcType="VARCHAR" /> <result column="u_tel" property="u_tel" jdbcType="VARCHAR" /> <result column="u_pwd" property="u_pwd" jdbcType="VARCHAR" /> <result column="u_avator" property="u_avator" jdbcType="VARCHAR" /> <result column="u_sex" property="u_sex" jdbcType="VARCHAR" /> <result column="u_birthday" property="u_birthday" jdbcType="TIMESTAMP" /> <result column="u_history" property="u_history" jdbcType="VARCHAR" /> <result column="u_remark" property="u_remark" jdbcType="VARCHAR" /> </resultMap> <delete id="deleteByPrimaryKey" parameterType="java.lang.String" > delete from user where u_idcard = #{u_idcard,jdbcType=VARCHAR} </delete> <insert id="insert" parameterType="com.party.community.po.User" > <selectKey resultType="java.lang.String" keyProperty="u_idcard" order="AFTER" > SELECT LAST_INSERT_ID() </selectKey> insert into user (u_unsername, u_tel, u_pwd, u_avator, u_sex, u_birthday, u_history, u_remark) values (#{u_unsername,jdbcType=VARCHAR}, #{u_tel,jdbcType=VARCHAR}, #{u_pwd,jdbcType=VARCHAR}, #{u_avator,jdbcType=VARCHAR}, #{u_sex,jdbcType=VARCHAR}, #{u_birthday,jdbcType=TIMESTAMP}, #{u_history,jdbcType=VARCHAR}, #{u_remark,jdbcType=VARCHAR}) </insert> <update id="updateByPrimaryKey" parameterType="com.party.community.po.User" > update user set u_unsername = #{u_unsername,jdbcType=VARCHAR}, u_tel = #{u_tel,jdbcType=VARCHAR}, u_pwd = #{u_pwd,jdbcType=VARCHAR}, u_avator = #{u_avator,jdbcType=VARCHAR}, u_sex = #{u_sex,jdbcType=VARCHAR}, u_birthday = #{u_birthday,jdbcType=TIMESTAMP}, u_history = #{u_history,jdbcType=VARCHAR}, u_remark = #{u_remark,jdbcType=VARCHAR} where u_idcard = #{u_idcard,jdbcType=VARCHAR} </update> <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String" > select u_idcard, u_unsername, u_tel, u_pwd, u_avator, u_sex, u_birthday, u_history, u_remark from user where u_idcard = #{u_idcard,jdbcType=VARCHAR} </select> <select id="selectAll" resultMap="BaseResultMap" > select u_idcard, u_unsername, u_tel, u_pwd, u_avator, u_sex, u_birthday, u_history, u_remark from user </select> <select id="selectByPhone" resultType="User"> select * from user where u_tel = #{phone} </select> </mapper>
package com.party.community.mapper; import com.party.community.po.User; import java.util.List; public interface UserMapper { int deleteByPrimaryKey(String u_idcard); int insert(User record); User selectByPrimaryKey(String u_idcard); List<User> selectAll(); int updateByPrimaryKey(User record); User selectByPhone(String phone); }
标签：ade 放弃 string 依赖 lstat his 链接 ima dtd
原文地址：https://www.cnblogs.com/Createsequence/p/11228448.html
