MyBatis插入列表值 [英] MyBatis Insert List values

问题描述

Mapper.xml（Mapper xml文件）

Mapper.xml (Mapper xml file)

<?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="TestDAO">
<insert id="insertEmployeeList" parameterType="java.util.List">
INSERT INTO EMPLOYEE (id, name) VALUES
<foreach collection="list" item="element" index="index" open="(" separator=","  close=")">
#{element.id}, #{element.name}
</foreach>
</insert>
</mapper>

Employee.java

Employee.java

public class Employee {
  private List<Emp> list = new ArrayList<Emp>();
  public List<Emp> getList() {
    return list;
  }
  public void setList(List<Emp> list) {
    this.list = list;
  }
}

Emp.java

public class Emp {
  public Emp(int id, String name) {
    this.id = id;
    this.name = name;
  }
  private int id;
  private String name;
  public int getId() {
    return id;
  }
  public void setId(int id) {
    this.id = id;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
}

TestDAO.java

TestDAO.java

public interface TestDAO {
public Integer insertEmployeeList(List<Emp> empList) throws SQLException;
}

Main.java

Main.java

public class Main {
   public static void main (String args[]) {
       TestDAO tm = session.getMapper(TestDAO.class);
       Employee e = new Employee();
       Emp e11 = new Emp(123,"abc");
       Emp e12 = new Emp(456,"def");
       e.getList().add(e11);
       e.getList().add(e12);
       tm.insertEmployeeList(e.getList());
   }
}

我得到的例外是：

Error updating database.  Cause: java.sql.SQLSyntaxErrorException: ORA-00913: too many values
The error may involve com.XXXX.sample.test.dao.TestDAO.insertEmployeeList-Inline
The error occurred while setting parameters
Cause: java.sql.SQLSyntaxErrorException: ORA-00913: too many values

推荐答案

Mapper.xml

Mapper.xml

<?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.xxxx.sample.test.dao.TestDAO">
  <insert id="insertEmployeeList" parameterType="java.util.List">
   INSERT ALL  
    <foreach collection="list" item="element" index="index" >
     INTO EMPLOYEE (id,name) values (#{element.id},#{element.name})
    </foreach>
   SELECT * FROM dual
 </insert>
</mapper>

这是查询应该在Mapper xml中的位置

This is how the query should be there in Mapper xml

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