Oracle在Mybatis中SQL语句的配置方法

数据库中有下划线的字段在实体中应采用驼峰命名法，如p_name对应pname,实例如下：

1.xml文件中sql语句配置（geteway.xml文件）

<?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.soecode.hbdw.gateway.dao.gatewaydao">
 <cache></cache>
 <!-- 目的：为dao接口方法提供sql语句配置 -->
 <select id="querybyid" resulttype="gateway" parametertype="int">
 <!-- 具体的sql -->
 select 
   *
 from
  p_gateway
 where
  gateway_id = #{gatewayid}
 </select>
 <select id="querybyname" resulttype="gateway" parametertype="java.lang.string">
 <!-- 具体的sql -->
 select
  *
 from
  p_gateway
 where
  gateway_name=#{gatewayname}
 </select>
 <delete id="delgateway" parametertype="java.lang.integer">
   delete 
   from 
   p_gateway
   where
   gateway_id = #{gatewayid}
 </delete>
 <update id="updategateway" >
 <!-- ignore 主键冲突，报错 -->
   update p_gateway
   set
   gateway_name= #{gatewayname},
   gateway_num= #{gatewaynum},
   gateway_nature= #{gatewaynature},
   gateway_supply= #{gatewaysupply},
   remark= #{remark} 
   where
   gateway_id = #{gatewayid}
 </update> 
</mapper>

2.entity实体配置（gateway.java文件）

package com.soecode.hbdw.gateway.entity;
import java.io.serializable;
import java.util.date;
public class gateway implements serializable{
 /**
 * 
 */
 private static final long serialversionuid = 1l;
 private int gatewayid;
 private string gatewayname;
 private string gatewaynum;
 private string gatewaynature;
 private string gatewaysupply;
 private string remark;
 public int getgatewayid() {
 return gatewayid;
 }
 public void setgatewayid(int gatewayid) {
 this.gatewayid = gatewayid;
 }
 public string getgatewayname() {
 return gatewayname;
 }
 public void setgatewayname(string gatewayname) {
 this.gatewayname = gatewayname;
 }
 public string getgatewaynum() {
 return gatewaynum;
 }
 public void setgatewaynum(string gatewaynum) {
 this.gatewaynum = gatewaynum;
 }
 public string getgatewaynature() {
 return gatewaynature;
 }
 public void setgatewaynature(string gatewaynature) {
 this.gatewaynature = gatewaynature;
 }
 public string getgatewaysupply() {
 return gatewaysupply;
 }
 public void setgatewaysupply(string gatewaysupply) {
 this.gatewaysupply = gatewaysupply;
 }
 public string getremark() {
 return remark;
 }
 public void setremark(string remark) {
 this.remark = remark;
 }
 public static long getserialversionuid() {
 return serialversionuid;
 }
 @override
 public string tostring() {
 return "gateway [gatewayid=" + gatewayid + ", gatewayname="
  + gatewayname + ", gatewaynum=" + gatewaynum
  + ", gatewaynature=" + gatewaynature + ", gatewaysupply="
  + gatewaysupply + ", remark=" + remark + "]";
 }
}

以上所述是小编给大家介绍的oracle在mybatis中sql语句的配置 ，希望对大家有所帮助