s:iterator dynamic display input box problem_html/css_WEB-ITnose
The jsp code and page are as follows
<body ><br> <div align="center"> <a href="listAllDataInfo">显示所有</a> <table width="500" border="1" class="table"> <tbody align="center"> <tr> <td colspan="5" style="font-size: 20;">指标信息</td> <tr> <td width="105">指标编码</td> <td width="300">指标名称</td> <td>填写数值</td> </tr> <!--循环显示记录部分 --> <s:iterator value="list" > <tr class="br_TR"> <td><s:property value="indexCode"/></td> <td><s:property value="indexName"/></td> <td><input name="" /></td> </s:iterator> </tbody> </table> </div> </body>
I first display each record in the database Index table through s:iterator, and then add after each record on the text box.
Here comes the problem, I want to enter a value into each text box, and then store all the values in the database object, and each value corresponds to a record. How to realize this dynamically displayed stored value?
Reply to the discussion (solution)
When iterating, add an ID to each INPUT element, and then add a button to get all INPUT after clicking it. The value is sent to the backend for storage.
When iterating, add an ID to each INPUT element, and then add a button. After clicking, get the value of all INPUT and send it to the backend for storage.
How to write the id element in the input of the jsp page? The id of each row of input should be different, right? There should be some variable filled in the id, right? Can you follow the example I gave?
When iterating, add an ID to each INPUT element, and then add a button. After clicking, get the value of all INPUT and send it to the backend for storage.
How to write the id element in the input of the jsp page? The id of each row of input should be different, right? There should be some variable filled in the id, right? Can you follow the example I gave?
<body ><br> <div align="center"> <a href="listAllDataInfo">显示所有</a> <table width="500" border="1" class="table"> <tbody align="center"> <tr> <td colspan="5" style="font-size: 20;">指标信息</td> <tr> <td width="105">指标编码</td> <td width="300">指标名称</td> <td>填写数值</td> </tr> <!--循环显示记录部分 --> <s:iterator value="list" > <tr class="br_TR"> <td><s:property value="indexCode"/></td> <td><s:property value="indexName"/></td> <td><input id="<s:property value="indexCode"/>" /></td> </s:iterator> </tbody> </table> </div> </body>
When iterating, add an ID to each INPUT element, and then add a button. After clicking, get the value of all INPUT and send it to Save on the end.
Thank you for your patience,
"
The attributes of the list itself are used, but I want to use this 6 records exist in another database table, not in the list table. What should I do?
s: It seems that the iterator tag can only traverse a list, right?
I don’t understand your needs. Don’t you want to save the value in the input to the database? Where to store it depends entirely on how your backend runs. JS does not store the database, it can only send requests to the backend for processing.
I don’t understand your needs. Don’t you want to save the value in the input to the database? Where to store it depends entirely on how your backend runs. JS does not store the database, it can only send requests to the backend for processing.
Sorry, the requirement was not made clear before.
There are three tables, Index table, data table and user table. Each user data corresponds to data data with indefinite bars.
The index table contains indicator names and indicator codes (as shown in the figure). It only stores some basic information of the data such as names, but does not store specific data.
The data table is dedicated to storing data. As shown in the figure, there are a total of 6 indicators, then if I fill in 6 texts, there will be 6 records stored in the data table. If I only fill in 4 texts, and the remaining 2 are left blank, click submit. , there are only 4 records stored in the data table.
In order to achieve this requirement, what should I do?
<s:form action="updateAllDataInfo" method="post"> <table width="500" border="1" class="table"> <tbody align="center"> <tr> <td colspan="5" style="font-size: 20;">指标信息</td> </tr> <tr> <td width="105">指标编码</td> <td width="300">指标名称</td> <td>填写数值</td> </tr> <!--循环显示记录部分 --> <s:iterator value="list" status="status" > <tr > <td><s:property value="indexCode"/></td> <td><s:property value="indexName"/></td> <td><input type="text" name="dataInfoList[#status.index].indexValue" style="width:100"/></td> </tr> </s:iterator> <s:submit value="保存" align="center" />
I wonder what my method above is like? But the dataInfoList[#status.index].indexValue value cannot be passed to the action
public String updateAll() throws Exception{ System.out.println("开始"); // List<IndexInfo> list = (List<IndexInfo>)session.get("list"); for(int i = 0; i < dataInfoList.size(); i++) { dataInfoBiz.addDataInfo(dataInfoList.get(i)); } return this.listAll(); }private List
I suggest you the best Debug both the front-end and the back-end to see what the format of the data sent by the front-end is, and then the back-end obtains the data according to the format.
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