jdbctemplate

How to write a query in hibernate for count(*) and + (addition)

由 ⅰ亾dé卋堺 提交于 2019-12-25 03:18:04
问题 I want to execute the below query in Hibernate? (select count(*) from login where emailid='something') + (select count(*) from user where nameid='something') 1st part OK: Query query = session.createQuery( "select count(*) from LoginClass login where login.emailid=:email); query.setString("email", "something"); Long count = (Long)query.uniqueResult(); 2nd part OK: Query query2 = session.createQuery( "select count(*) from UserClass login where name.nameid=:name); query2.setString("name",

CannotCreateTransactionException: com.microsoft.sqlserver.jdbc.SQLServerException Login Error

由 给你一囗甜甜゛ 提交于 2019-12-25 01:56:23
问题 i am using Spring Batch with a Microsoft SQL 2014 Database. It is running on a Tomcat 9.0.16 Server with OpenJDK 11.0.2 My Problem is that i get randomly errors in which there is no JDBC Connection possible. There are two Steps defined in the Job: The first one contains the following Tasklet The relevant Code : @Bean public Step stepOne() { final Tasklet taskletOne = new Tasklet() { @Override public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws

Autowire Objectmapper in RowMapper

由 落爺英雄遲暮 提交于 2019-12-24 23:08:21
问题 I found answers say it possible to autowire inside rowmapper, If you want ScoreMapper instances to have ScoreCreator scoreCreator be injected with a Spring bean, the ScoreMapper instance itself must be a Spring bean, ie. created and managed by Spring Or by adding @Component You can define PersonUtility class as spring bean adding @component over the class. But currently RowMapper is instantiated with new in jdbcTemplate.query : jdbcTemplate.query(SQL, new Object[] {}, new MyRowMapper()) And I

SpringAOP——通过JdbcTemplate连接数据库，并使用事务（Transactional）（使用IDEA进行编程）

由 冷暖自知 提交于 2019-12-24 14:06:05
JdbcTemplate:用于操作数据库，与Dbutils一样，是一个操作数据库的工具。 首先声明事物是很简单的，只是为了展现例子，需要做很多准备工作。 1）使用c3p0获取连接： 　　先导入mysql的jar包:　　mysql-connector-java-8.0.16.jar 　　再导入c3p0的3个jar包:　　c3p0-0.9.5.2.jar　　c3p0-oracle-thin-extras-0.9.5.2.jar　　mchange-commons-java-0.2.11.jar 　　　　　　　　　　　　下载地址：https://sourceforge.net/projects/c3p0/files/latest/download?source=files ——等待一会自动弹出下载框 　　　　　　　　　　　　c3p0的基础知识：https://www.cnblogs.com/ygj0930/p/6405861.html 2)创建配置文件： 　　先创建：db.properties　　https://blog.csdn.net/u013164931/article/details/76283884 jdbc.user=root jdbc.pssward=123456 jdbc.driverClass=com.mysql.cj.jdbc.Driver jdbc.url=jdbc

数据库连接池&&JDBCTempale

由 纵然是瞬间 提交于 2019-12-24 07:06:16
学习笔记 仅供参考！！！！！！！！！！！！！！！！！！！！！！！！！ 数据库连接池： 　　其本质就是一个容器(集合),用来存放数据库连接的； 　　当系统初始化好后 容器被创建 容器中会申请一些连接对象 当你需要读取连接时 只需要在容器中请求其中一个连接对象，当你需要释放时 只需要将其在归还给容器就行了； 　　实现: 　　　　接口：DataSource：可以生成标准的Connection对象 　　　　　　方法： 　　　　　　　　获取连接： getConnection() 　　　　　　　　归还连接： 如果连接对象Connection是从连接池获取的 那么调用Connection.close()方法会将其归还 　　　　代表了数据源 其数据源接口由数据库厂商提供 　　　　　　1.c3p0:数据库连接池 　　　　　　2.Druid：数据库连接池实现技术 由阿里巴巴提供 c3p0: 数据库连接池i技术： 　　使用步骤： 　　　　1.导入jar包(两个): 　　　　 注意： 导入包时不要忘记在导入驱动jar包 　　　　2.定义配置文件： 　　　　　　名称：c3p0.properties 或者c3p0-config.xml 　　　　　　路径： 直接将文件放在src目录下即可 　　　　3.创建核心对象 数据库连接池对象 ComboPooledDataSource 注意： 数据库路径,用户名,密码

Disabling auto-commit in NamedParameterJdbcTemplate.batchUpdate

由 独自空忆成欢 提交于 2019-12-24 02:06:42
问题 I am doing a batch update into my DB table using NamedParameterJdbcTemplate.batchUpdate , but I would like to disable auto-commit and perform the commit manually. I can set auto-commit mode off from the connection object, but not sure how to do the same using NamedParameterJdbcTemplate object. 回答1: I have done my implementation using TransactionTemplate It has an execute method and I do the business logic inside a callback in this function. transTemplate.execute( new

Spring的jdbcTemplate查询执行原生sql

由 眉间皱痕 提交于 2019-12-24 01:02:29
　　在spring与hibernate整合时进行数据库检索，执行原生sql： 　　 public AppointmentEvaluateVo searchMyfeedbackDetail(String accountId, String fbId) { String sql = "select ae.id as fbId ,ae.app_id as appId, a.app_no as appNo," + " si.service_item AS serItem,a.app_service_time as feedTime,ae.remark as" + " feedCon, cou.attitudeScore AS attitudeScore,cou.qualityScore AS qualityScore," + "cou.prescriptionScore AS prescriptionScore from appointment_evaluate ae LEFT JOIN" + " appointment a ON ae.app_id=a.id LEFT JOIN organization_service_item osi " + "ON a.item_id=osi.id LEFT JOIN service_item si ON osi.service_item_id=si

Using NamedParameterJdbcTemplate to send data to DataBase

由 混江龙づ霸主 提交于 2019-12-23 23:18:07
问题 package com.techm.template; import java.sql.Types; import java.util.Date; import java.util.HashMap; import java.util.Map; import javax.sql.DataSource; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.core.namedparam.MapSqlParameterSource; import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate; import org.springframework.jdbc.core.namedparam.SqlParameterSource; import org.springframework.jdbc.datasource.DriverManagerDataSource; public class

how to pass multiple values to query using jdbcTemplate in spring

由 情到浓时终转凉″ 提交于 2019-12-23 19:05:39
问题 In my Spring Hibernate application i have all the sql queries in one common_queries.xml file,where some queries require 2 to 3 parameters shown as below <query id="mining.fuel" no-of-params="2"> select ms.id id,ms.name value,concat(ms.name,' ',' (',ms.code,')') label,ms.rate rate from mining_fuel ms where ms.name like '?' and ms.fuel_type_id=? LIMIT 10 </query> In my daoImpl i get this query lookupList = jdbcTemplate.queryForList(q1.getQuery()); I will get the query here,but how to pass the

Named parameter doesn't work with MySql LIKE statement

由 拈花ヽ惹草 提交于 2019-12-23 12:37:13
问题 I'm trying to organize a search function on the site, using the Spring-jdbc NamedParameterJdbcTemplate. public List<PhoneEntry> searchPhoneEntries(String search, String username) { String SQL = "select * from entries, users where users.enabled=true " + "and entries.username=:username " + "and concat(secondName, firstName, patronymic, mobile, tel, " + "address, entries.email) like ('%:search%')"; MapSqlParameterSource params = new MapSqlParameterSource(); params.addValue("username", username);
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