spring mvc -display values in dropdown list from DB

Question

I have a dropdown list like this

<form:select path="component" multiple="true" id="componentId">
    <form:option value="" label="--- Select Components---" />
    <form:options items="${componentList}" />
</form:select>

Here the componentLits prints the vaues stored in the db in the below format

 Boot Up(bootup),
              Channel Tuning(channelTuning)
              TOCOD(tocvod)

I have to display values in dropdown list UI as Boot Up , Channel Tuning, TOCOD.dont need to display the values inside brackets. And while selecting the above values (for example if i choose Boot UP from dropdown its value will be bootup not the displaying one(Boot UP)) how it is possible with spring mvc form

do you have a arraylist with this values? what is the problem? are the values not displayed? — Si mo
– Si mo, Commented Nov 19, 2015 at 10:57
values are displying in the dropdown in the Boot Up(bootup) Channel Tuning(channelTuning) format..i have to display Boot Up, hannel Tuning only but while selecting Boot Up from dropdown list the value will be bootup..i mean the value inside the bracket.. — saathu
– saathu, Commented Nov 19, 2015 at 11:01
i understand. the label should be Boot Up and the value "bootup". Is componentList a arrayList or a map or set or ... ? — Si mo
– Si mo, Commented Nov 19, 2015 at 11:04
ok, change it to a hashmap .. Map< String, String > ttt = new HashMap<string, string="">(); ttt.put(" Boot Up", "bootup"); — Si mo
– Si mo, Commented Nov 19, 2015 at 11:08

Si mo · Accepted Answer · 2015-11-19 11:14:03Z

1

Change the arrayList to a hashMap.

Map< String, String > componentList= new HashMap<string, string>(); 
componentList.put(" Boot Up", "bootup");

After that the key will be displayed as value, and the value of the map as label.

<form:select path="component" multiple="true" id="componentId">
    <form:option value="" label="--- Select Components---" />
    <form:options items="${componentList}" />
</form:select>

edited Nov 19, 2015 at 11:14

answered Nov 19, 2015 at 11:10

Si mo

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4 Comments

saathu Over a year ago

how can i display tt in UI<form:select path="component" multiple="true" id="componentId"> <form:option value="" label="--- Select Components---" /> <form:options items="${tt}" /> </form:select>

saathu Over a year ago

could you please how it can be displying in the form select of dropdown list

saathu Over a year ago

one more doubt using java how can i split key values Boot Up(bootup)

Si mo Over a year ago

Is the string "Boot Up(bootup)" like this stored in one column in the database? Use StringUtils from apache commons. The method is StringUtils.split("(") and please flag my answer as accepted. examples.javacodegeeks.com/core-java/apache/commons/lang3/…

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