hibernate報錯Unknown integral data type for ids : java.lang.String

package com.model;
// Generated 2016-10-27 14:02:17 by Hibernate Tools 4.3.1.Final

/**
 * CmDept generated by hbm2java
 */
public class CmDept/* implements java.io.Serializable */{

    private String id;
    private String deptName;

    public CmDept() {
    }

    public CmDept(String id) {
        this.id = id;
    }

    public CmDept(String id, String deptName) {
        this.id = id;
        this.deptName = deptName;
    }

    public String getId() {
        return this.id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getDeptName() {
        return this.deptName;
    }

    public void setDeptName(String deptName) {
        this.deptName = deptName;
    }

}

 

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 2016-10-27 14:40:22 by Hibernate Tools 3.5.0.Final -->
<hibernate-mapping>
    <class name="com.model.CmDept" table="CM_DEPT">
        <id name="id" type="java.lang.String">
            <column name="ID" />
            <generator class="sequence">
                <param name="sequence">cm_sequence_dept</param>
            </generator>
        </id>
        <property name="deptName" type="java.lang.String">
            <column name="DEPTNAME" />
        </property>
    </class>
</hibernate-mapping>

以上代碼是報錯的代碼 ! ! !

由於是使用的反向工程建表, 在設計表結構的時候將幾個表的id設置成了varchar2型, 導致反向工程生成的實體類的主鍵id的類型變成String了, 所以當HibernateTemplate在插入數據的時候不認識了, 所以報了這個錯誤, 從新修改一遍表結構, 將oracle數據庫的主鍵改成number, 將實體類中的id改成Bigdecimal, 還記得要重新生成一遍*.hbm.xml文件, 問題解決