使用spring的jdbcTemplate查询返回对象
数据库中的数据表：
create table client
(
????? clientId???? int identity(1,1),
????? clientName??????? varchar(100)
)
?
创建返回对象类：
public class client
{
????? private Integer clientId;
????? private String clientName;
?
????? public client()
???? {
???? }
?
????? public Integer getClientId() {
?? ??? ?return this.clientId;
?? ?}
?? ?public void setClientId(Integer clientId) {
?? ??? ?this.clientId = clientId;
?? ?}
?? ?public String getClientName() {
?? ??? ?return this.clientName;
?? ?}
?? ?public void setClientName(String clientName) {
?? ??? ?this.clientName = clientName;
?? ?}
}
?
?
使用spring的jdbcTemplate查询返回对象
XmlBeanFactory factory = new XmlBeanFactory(new ClassPathResource("bean.xml"));
org.springframework.jdbc.core.JdbcTemplate template = (org.springframework.jdbc.core.JdbcTemplate) factory.getBean("jdbcTemplate");
java.util.List<client> list = (java.util.List<hbconfig.client>)template.query(
??? ??? ??? ??? "select * from client", new ResultSetExtractor() {
??? ??? ??? ??? ??? public Object extractData(ResultSet arg0)
??? ??? ??? ??? ??? ??? ??? throws SQLException, DataAccessException {
??? ??? ??? ??? ??? ??? java.util.List<hbconfig.Client> list = new java.util.ArrayList<Client>();
??? ??? ??? ??? ??? ??? while (arg0.next()) {
??? ??? ??? ??? ??? ??? ??? client c = new client();
??? ??? ??? ??? ??? ??? ??? c.setClientId(arg0.getInt("clientId"));
??? ??? ??? ??? ??? ??? ??? c.setClientName(arg0.getString("clientName"));
??? ??? ??? ??? ??? ??? ??? list.add(c);
??? ??? ??? ??? ??? ??? }
??? ??? ??? ??? ??? ??? return list;
??? ??? ??? ??? ??? }
??? ??? ??? ??? });
??? ??? for(hbconfig.Client c : list)
??? ??? {
??? ??? ??? System.out.println(c.getClientName());
??? ??? }
?
bean.xml配置信息
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
??? ??? xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
??? ??? xsi:schemaLocation="http://www.springframework.org/schema/beans
??? ???? ??? ??? ??? ??? ??? http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"
??? ??? default-autowire="byName">
<bean id="dataSource" destroy-method="close">?????
<property name="driverClass" value="com.mysql.jdbc.Driver"/>?????
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/wangfu"/>?????
<property name="user" value="root"/>?????
<property name="password" value="root"/>?????
</bean>??
<bean id="jdbcTemplate" ref="dataSource"/>
</bean>
</beans>
