ibatis | 易学教程

How to insert unicode to Oracle NVARCHAR using MyBatis with Spring integration

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问题 INSERT INTO rbp_users (user_id, user_name, passwd, bank_id, descr, stat, p_exp, user_type_id, email_address) VALUES (rbp_userid_seq.NEXTVAL , 'any_user_name', 'some_encrypted_password', 1, N'əəııööğğşşççüü', --unicode string 'E', SYSDATE, 2, NULL); Above insert into Oracle table with NVARCHAR field "descr" works fine via PL/SQL Developer. But I can't write "N" before unicode field in MyBatis DAO Mapper XML: <insert id="addUser" parameterType="User" flushCache="true"> INSERT INTO rbp_users

Not able to run sql query with Mybatis

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问题 I am trying to run a simple sql query using mybatis but its giving me following exception java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for com.mycom.myproject.db.mybatis.dao.UserMapper.countByExample org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:660) org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:495) org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:488) org.apache

How can I exclude upper limit in BETWEEN sql server

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问题 I am using SQL Server as my database. I am searching for a row for the date that I have entered. This means searching rows where submission_date is exactly '12/13/2011' . First I am converting the search criteria date to milliseconds i.e. Dec 13 2011 00:00:00 ='1323727200000' Dec 14 2011 00:00:00 ='1323813600000'` SELECT * FROM log_file WHERE submission_date BETWEEN '1323727200000' AND '1323813600000' This query will search for Dec 13 Midnight to Dec 14 Midnight , but I want to skip the upper

How would I pass parameter and check it in mybatis dynamic query creation

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问题 I have written a select query inside my mapper.xml <select id="getCatCount" parameterType="String" resultType="int"> select count(*) from Categories where status is not null <if test="catTypeId != 0"> AND cat_type_id = #{catTypeId,jdbcType=INTEGER} </if> </select> and in mapper.java method is int getCatCount(int catTypeId); How can I check for catTypeId in if condition. I know the above statement is incorrect but I want to put condition like this so I check if catTypeId not zero then only add

How to compare strings in mybatis 3 with if statement - dynamic sql

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问题 In myBatis 3 how do you compare a string when using dynamic sql? With iBatis previously you could do the following: <isEqual property="sortBy" compareValue="portfolio_id">order by p.portfolio_id</isEqual> Now with myBatis can you do the following: <if test="sortBy.equals('facility_id')"> order by pd.facility_id </if> sortBy is a property in the parameter map and "facility_id" is the value I'm a little bit confused as it was straight forward in ibatis. 回答1: All you have to do is <if test=

Retreieve CLOB data using Ibatis 2.3

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问题 I am trying to retrieve a clob data from the oracle database as shown in reports.xml .i am using oracle jdbc driver version " Oracle JDBC Driver version - 10.0.2.0.0 " . The following are the errors i receive ,kindly let me know ,how to resolve this. 2011-08-31 13:03:40,790 WARN [org.apache.struts.chain.commands.AbstractExceptionHandler] (http-10.12.230.222-8080-1) Unhandled exception com.ibatis.common.jdbc.exception.NestedSQLException: --- The error occurred in sa/mobily/telecop/dao/config

MyBatis 3.0.5 and mappers loading problem

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问题 I'm using MyBatis 3.0.5 and I have problems about the loading of mappers as resources. I'm on Windows 7 64, I use Eclipse Indigo 64bit and jdk7 64. MyBatis is initialized in a Grizzly Web Container (where are implemented rest services with jersey framework) standalone instance. <mappers> <mapper url="file:///C:/Users/andrea/workspace/soap2rest/src/main/java/com/izs/mybatis/FormMapper.xml" /> <mapper resource="src/main/java/com/izs/mybatis/FormMapper.xml" /> </mappers> I have the same mappers

Fastest way for doing INSERTS using IBATIS

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问题 I need to insert 20,000 rows in a single table (SQL Server 2005) using iBatis. What's the fastest way to do it ? I'm already using batch mode, but it didn't help much: try { sqlMap.startTransaction(); sqlMap.startBatch(); // ... execute statements in between sqlMap.commitTransaction(); } finally { sqlMap.endTransaction(); } 回答1: Barring the bulk loaders others are referring to, let's consider how to best do it through SQL. (And the bulk loaders don't work well if you're sending intermixed

mybatis、ibatis 和spring集成

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mybatis是ibatis的升级版，spring也有自带mybatis的orm。所以，搭建ibatis的框架也会有多种方式（我这里mybatis是3.0的，ibatis是2.3的，spring是3.0的，数据库是mysql）。下面介绍3中方式 1，只是用mybatis3。 2，使用mybatis3+spring3(使用mybatis的SqlSessionFactory )。 3，使用ibatis2.3+spring(使用spring自带的ibatis) spring的orm包中只有ibatis，没有mybatis。而mybatis和ibatis还是有些区别的，比如配置文件属性不同。第一种方式(只使用mybatis)： 1）jar包： cglib-2.2.jar asm-3.1.jar mysql-connector-java-3.1.13.jar mybatis-3.0.5.jar junit.jar 2）mybatis配置文件： [html] view plain copy <? xml version = "1.0" encoding = "UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config

struts2,spring,ibatis学习

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1.1 什么是struts2？　　MVC思想给网站设计带来了巨大的好处，但是MVC毕竟只是一种思想，不同的程序员写出来的基于MVC思想的应用，风格可能不一样。影响程序的标准化，Struts是为了规范MVC开发而发布的一个框架，类似的框架还有WebWork、SpringMVC等。　　Struts 2是Struts的下一代产品，是在 struts 1和WebWork的技术基础上进行了合并的全新的Struts 2框架。其全新的Struts 2的体系结构与Struts 1的体系结构差别巨大。Struts 2以WebWork为核心，采用拦截器的机制来处理用户的请求，这样的设计也使得业务逻辑控制器能够与Servlet API完全脱离开，所以Struts 2可以理解为WebWork的更新产品。虽然从Struts 1到Struts 2有着太大的变化，但是相对于WebWork，Struts 2的变化很小。一个请求在Struts2框架中的处理大概分为以下几个步骤　　1 客户端初始化一个指向Servlet容器（例如Tomcat）的请求　　2 这个请求经过一系列的过滤器（Filter）（这些过滤器中有一个叫做ActionContextCleanUp的可选过滤器，这个过滤器对于Struts2和其他框架的集成很有帮助，例如：SiteMesh Plugin）　　3