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191问答库 > jsp页面中table里面有多行数据且每行数据后面有更新按钮，单击更新按钮action中怎么得到该行数据？

jsp页面中table里面有多行数据且每行数据后面有更新按钮，单击更新按钮action中怎么得到该行数据？

2025-03-16 23:20:53

推荐回答（1个）

回答1：

1、获取该行数据的ID

2、将ID通过链接传到action中比如http://localhost/test.action?id=1
3、在action中获取ID 有两种方法
方法一：使用request
String id=(String)request.getParameter("id");
方法二：使用属性来获取
先在action中声明一个属性id。String id="";给他get和set方法
然后在action方法中就可以直接使用id这个属性了只要你提交上来的id不为空 id的值就是你提交上来的id值
4、根据ID查询数据就可以获取ID对应的数据就是那一行的数据
以上方法是在有数据库操作的前提下才能进行！！！！

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如果没有数据库操作的话

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