ibatis | 易学教程

Get the id of last inserted record in mybatis

阅读更多关于 Get the id of last inserted record in mybatis

问题 I am newbie to mybatis. I am trying to get the id of last inserted record. My database is mysql and my mapper xml is <insert id="insertSelective" parameterType="com.mycom.myproject.db.mybatis.model.FileAttachment" > <selectKey resultType="java.lang.Long" keyProperty="id" order="AFTER" > SELECT LAST_INSERT_ID() as id </selectKey> insert into fileAttachment <trim prefix="(" suffix=")" suffixOverrides="," > <if test="name != null" > name, </if> <if test="attachmentFileSize != null" > size, </if>

iBatis get executed sql

阅读更多关于 iBatis get executed sql

问题 Is there any way where I can get the executed query of iBatis? I want to reuse the query for an UNION query. For example: <sqlMap namespace="userSQLMap"> <select id="getUser" resultClass="UserPackage.User"> SELECT username, password FROM table WHERE id=#value# </select> </sqlMap> And when I execute the query through int id = 1 List<User> userList = queryDAO.executeForObjectList("userSQLMap.getUser",id) I want to get SELECT username, password FROM table WHERE id=1 Is there any way I could get

Ibatis/MyBatis select dynamically without need to create any Pojo / Mapper

阅读更多关于 Ibatis/MyBatis select dynamically without need to create any Pojo / Mapper

问题 Is there any way to select/update/delete dynamically using Ibatis/MyBatis? When I say "dynamically" it means I don't want to create any POJO/DataMapper at all. Any URL example would be welcomed. 回答1: Yes, just set the resultType attribute to map and the table data will be placed into a HashMap of column names to values. If the query returns more than 1 row, the mapped rows will be put into a List. If you want to select a single column, you can get just that value (as String, int, etc) or as a

The conversion to class java.time.LocalDateTime is unsupported.

阅读更多关于 The conversion to class java.time.LocalDateTime is unsupported.

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> mssql-jdbc 对于java8的LocalDate，LocalTime，LocalDatetime的转换异常先说下解决方法： 1. 降级Mybatis至3.5.0及以下； 2. 或升级mssql-jdbc驱动至7.1.0及以上原文地址： https://blog.csdn.net/qq_24505485/article/details/103540439 解决过程之前实体类使用的是Timestamp 来存储时间，没有错，后来使用了LocalDatetime来存储也没错，再之后我把 Mybatis从3.5.0升级到了3.5.1之后，（mssql-jdbc的版本是com.microsoft.sqlserver:mssql-jdbc: 6.4.0.jre8 ）LocalDatetime的转换就会抛异常： com.microsoft.sqlserver.jdbc.SQLServerException: The conversion to class java.time.LocalDateTime is unsupported. at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getObject(SQLServerResultSet.java:2249

阿里巴巴微服务架构演进

阅读更多关于阿里巴巴微服务架构演进

【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 阿里巴巴服务化架构演进单一应用架构 All In One 整个网站几个应用前台 web + 后台 ops + tasks 业务 web + service/dao 各自开发一起集成发布技术战：Webx、Spring Ibatis、Jboss、Oracle 存在的问题：合并时经常代码冲突、发布相互制约效率低下、应用代码庞大臃肿维护困难。垂直应用架构按应用拆分 Service / DAO / Impl 都以二方库 jar 包的形式提供出去代码拆分，独立部署，流程隔离，技术栈没有太大变化应用相互之间直接依赖二方库问题：升级困难，要全网推动数据库连接池压力大分布式服务架构 API 与实现分离使用 RPC 进行通信，服务端升级方便各种服务中心出现，会员中心，商品中心，交易中心等技术栈： Ali-tomcat Pandora Dubbo HSF 存在的问题：依赖冲突中间件升级困难应用配置服务应用开发效率低下微服务架构拥抱微服务，提升开发体验和效率应用更轻量、开发更简单配置编码开发调试部署技术栈： Pandora Boot Spring Boot 容器隔离Pandora 为什么需要隔离？ Pandora的容器架构如下： Pandora 结构与部署形式：与应用 tgz

Circular reverences in iBatis

阅读更多关于 Circular reverences in iBatis

问题 I have two classes: class Apple { Worm worm; } class Worm { Apple apple; } They are stored in db in 1:1 fashion: table Apple(id, wormId) table Worm(id) Each apple has only one worm and vice versa. With out of iBatis I can do it simply: Worm worm = new Worm(); Apple apple = new Apple(); worm.setApple(apple); apple.setWorm(worm); How can I do it in ibatis? <resultMap id="Apple" type="Apple"> <result property="id" column="id"/> <result property="worm" column="id" select="getWormByApple"/> <

mybatis连接工厂java类实现

阅读更多关于 mybatis连接工厂java类实现

写在前面很久以前在有道云笔记上写的笔记，打算放弃它了，将笔记迁移到这里来。文章可能还有很多不足，请大家谅解，欢迎大佬提意见。本文使用到的东西 mybatis java 1.正文 package com . etc . util ; import java . io . InputStream ; import java . sql . Connection ; import org . apache . ibatis . io . Resources ; import org . apache . ibatis . session . SqlSession ; import org . apache . ibatis . session . SqlSessionFactory ; import org . apache . ibatis . session . SqlSessionFactoryBuilder ; import org . apache . log4j . lf5 . util . Resource ; //实现获取、释放mybatis数据库连接的工具类 public class MyBatisSessionFactory { //定义常量 private static String CONFIG_FILE_LOCATION = "mybatis-config

Does iBATIS 2.3.x support foreach tag?

阅读更多关于 Does iBATIS 2.3.x support foreach tag?

问题 I have a personal website which uses iBATIS 2.3.x. Recently I'm adding a complex searching feature to the site, need to query the data by a list of object, likes: public Class PromotionAttribute { String attributeName; String attributeValue; } The query looks like: select p.* from promotions p join promotion_attributes pa on p.id=pa.id where <foreach item="PromotionAttribute" index="index" collection="list" open="(" separator=" or " close=")"> pa.attribute_name=#{attributeName} and pa

How to map a myBatis result to multiple objects?

阅读更多关于 How to map a myBatis result to multiple objects?

问题 Is it possible in myBatis 3 to map a single result to multiple objects, ensuring that the objects all reference the same instance? Is there an example of this I could reference? Updated to add more detail: For instance, let's say I store information regarding Contact s for my application in my DB. I want to know if it's possible to use myBatis to map the same instance of a contact to, say, a Listing class, which holds a Contact : public class Listing { private Contact myContact; //getters &

How perform Junit tests with Struts - Ibatis

阅读更多关于 How perform Junit tests with Struts - Ibatis

问题 im using Struts 1.2.x and Ibatis 2.x version for development, so i finish yesterday and now i want to perform test this is my first time trying to work with JUnit, I already make test but in JavaApp not running on server, so how can I simulate or generate mocks with server behavior, and wich mocks are recommended for Struts and Ibatis built-in Environment? for example how can i set accerts for login screen? I know about StrutsTestCase im using it, and about Cactus are for containers and