| Java数据类型 | Hibernate数据类型 | 标准SQL数据类型 (PS:对于不同的DB可能有所差异) |
| byte、java.lang.Byte | byte | TINYINT |
| short、java.lang.Short | short | SMALLINT |
| int、java.lang.Integer | integer | INGEGER |
| long、java.lang.Long | long | BIGINT |
| float、java.lang.Float | float | FLOAT |
| double、java.lang.Double | double | DOUBLE |
| java.math.BigDecimal | big_decimal | NUMERIC |
| char、java.lang.Character | character | CHAR(1) |
| boolean、java.lang.Boolean | boolean | BIT |
| java.lang.String | string | VARCHAR |
| boolean、java.lang.Boolean | yes_no | CHAR(1)('Y'或'N') |
| boolean、java.lang.Boolean | true_false | CHAR(1)('Y'或'N') |
| java.util.Date、java.sql.Date | date | DATE |
| java.util.Date、java.sql.Time | time | TIME |
| java.util.Date、java.sql.Timestamp | timestamp | TIMESTAMP |
| java.util.Calendar | calendar | TIMESTAMP |
| java.util.Calendar | calendar_date | DATE |
| byte[] | binary | VARBINARY、BLOB |
| java.lang.String | text | CLOB |
| java.io.Serializable | serializable | VARBINARY、BLOB |
| java.sql.Clob | clob | CLOB |
| java.sql.Blob | blob | BLOB |
| java.lang.Class | class | VARCHAR |
| java.util.Locale | locale | VARCHAR |
| java.util.TimeZone | timezone | VARCHAR |
| java.util.Currency | currency | VARCHAR |
贴点源码对比的看看
package my.bean;
public class adv {
private int id;
private String username;
private String telphone;
private String content;
public adv() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getTelphone() {
return telphone;
}
public void setTelphone(String telphone) {
this.telphone = telphone;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
}
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping package="my.bean">
<class
name="adv"
table="adv"
>
<id
name="id"
type="int"
column="id"
>
<generator class="identity"/>
</id>
<property
name="username"
column="username"
type="string"
not-null="false"
/>
<property
name="telphone"
column="telphone"
type="string"
not-null="false"
/>
<property
name="content"
column="content"
not-null="false"
/>
</class>
</hibernate-mapping>