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java数据类型对应表
java数据类型对应表
Java数据类型
和MySql
数据类型对应表
java
mysql
数据类型
对照 类型名称 显示长度 数据库类型
JAVA
类型 JDBC类型索引(int)描述 VARCHAR L+N VARCHAR
java
.lang.String 12 CHAR N CHAR
java
.lang.String 1 BLOB L+N BLOB
java
.lang.byte[]-4 TEXT 65535 VARCHAR
java
.lang....
oracle
表数据类型
number
对应java
中BIgDecimal转int
oracle中id为number
类型
,在
java
获取id时用getBigDecimal 相匹配,如果想转换成int,重写model中的getInt方法:1 public Integer getInt(String attr){ 2 return getNumber(attr).intValue();3 } 如此,即可调用model.getInt(id),而不是每次...
oracle
表数据类型
number
对应java
中BIgDecimal转int
oracle中id为number
类型
,在
java
获取id时用getBigDecimal 相匹配,如果想转换成int,重写model中的getInt方法:1 public Integer getInt(String attr){ 2 return getNumber(attr).intValue();3 } 如此,即可调用model.getInt(id),而不是每次...
Java数据类型
,Hibernate数据类型,标准sql数据类型之间的
对应表
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 ...
Java
实体Date
类型
属性值无法保存到
数据表对应
字段的问题
Java
实体Date
类型
属性值无法保存到
数据表对应
字段的问题 项目框架:maven+springMVC+mybatis 实体属性:/推荐时间private
java
.util.Date recommendDate;数据库字段:ALTER TABLE `resource`ADD COLUMN `RECOMMEND_DATE` date NULL COMMENT...
1
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Dragonwell
Alibaba Dragonwell 是一款免费的, 生产就绪型Open JDK 发行版,提供长期支持,包括性能增强和安全修复。完全兼容 Java SE 标准,您可以在任何常用操作系统(包括 Linux、Windows 和 macOS)上开发 Java 应用程序。
立即下载
了解更多
开发者必备
必备 IDE 插件
应用托管平台
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{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"title":"Dragonwell","des":"Alibaba Dragonwell 是一款免费的, 生产就绪型Open JDK 发行版,提供长期支持,包括性能增强和安全修复。完全兼容 Java SE 标准,您可以在任何常用操作系统(包括 Linux、Windows 和 macOS)上开发 Java 应用程序。","contentLink":"https://www.aliyun.com/product/dragonwell","btn1":"立即下载","link1":"https://github.com/alibaba/dragonwell8/releases","btn2":"了解更多","link2":"https://github.com/alibaba/dragonwell8","infoGroup":[{"infoName":"开发者必备","infoContent":{"firstContentName":"必备 IDE 插件","lastContentName":"应用托管平台","firstContentLink":"https://www.aliyun.com/product/cloudtoolkit?spm=5176.cndragonwell.0.0.70a87568BIAK52","lastContentLink":"https://www.aliyun.com/product/webx?spm=5176.cndragonwell.0.0.70a87568BIAK52"}}],"btn3":"","ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/imgextra/i4/O1CN011TDP5K2AAhpi20bLr_!!6000000008163-2-tps-64-64.png"}],"card":[],"search":[],"infoCard":[],"title":{"mainTitle":"mPaaS","subtitle":"源自于支付宝小程序框架,亿级线上业务体量的锤炼,安全性媲美支付宝原生能力。不仅面向自有 App 投放小程序,更可快速构建打包,覆盖支付宝、淘宝、钉钉等应用。","linkUrl":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}}
Dragonwell
Alibaba Dragonwell 是一款免费的, 生产就绪型Open JDK 发行版,提供长期支持,包括性能增强和安全修复。完全兼容 Java SE 标准,您可以在任何常用操作系统(包括 Linux、Windows 和 macOS)上开发 Java 应用程序。
立即下载
了解更多
开发者必备
必备 IDE 插件
应用托管平台