Freemarker - Select Option Not Saved

I have a form in my ftl file and one part of this is this select: <$assign valueSolution 1: Let's build a common ground:First, create a POJO to hold the information of your formpublicclassFoo{ privateString bar; // public getter and setter ommitted } CopyNow, in your Spring MVC controller, put the instance you want to bind to into Spring MVC's model. This is done by annotating a method using @ModelAttribute which returns the required instance. Typically, you'll read current values for your form from a database - For the sake of brevity I'm just creating a new model instance here:@ControllerpublicclassMyController { @ModelAttributepublic Foo readFooFromDB() { // read the current option from the DB or simply create a default option hereFoof=newFoo(); f.setBar("B"); return f; } } CopySpring will now put the Foo instance into it's model using the name foo. You could change that name by assigning another value to your @ModelAttribute annotation.Next add a @RequestMapping method to your controller, which will forward to your Freemarker View:@ControllerpublicclassMyController { .... @RequestMapping("/request/path/") publicStringprocess() { return"mytemplate"; } } CopyFinally, in your template use Spring's FreeMarker macros to render a form including your select:<#import"spring.ftl"as spring /> <form action="/request/path/"> <#assign options = { "A": "Option A", "B": "Option B", "C": "Option C" } /> <@spring.formSingleSelect path="foo.bar" options /> <input type="submit" value="Send" /> </form> CopyThe form should now render the current value of the your Foo instance ("B" in our case) as the selected option.So far, so good. Last step (the one you were originally asking for): If you submit your form, Spring should bind the submitted bar value to your foo instance. To achieve this, simply add the instance as a parameter to your request method and annotate it again with @ModelAttribute. Note that the name of the parameter is important here and must match the name of the instance in Spring's model - foo in our case:@ControllerpublicclassMyController { .... @RequestMapping("/request/path/") publicStringprocess(@ModelAttribute Foo foo) { // Binds all submitted request params to matching properties of your foo instance// validate your foo instance and probably save it in a DBreturn"mytemplate"; } } CopyVoilá Share Post a Comment for "Freemarker - Select Option Not Saved" Top Question Buttons Centered Over Canvas I have 4 overlapping canvases (acting as layers) positioned… Batch Conversion Of Docx To Clean HTML I'm starting to wonder if this is even possible. I'… Transfer A Mousewheel/scroll Event From One Div To Another I would like to know if it's possible and how to transf… Selecting Text Between Is it possible to select text between tags? I am working w… Prevent Grid Area From Expanding Causing Whole Page To Scroll I'm using the following grid layout: grid-template-colu… How To Limit The HTML Table Records In Each Page I am populating a table in my jsp which has more than 20 re… How To Limit The Html Table Records In Each Page I am populating a table in my jsp which has more than 20 re… Concatenate Parts Of Two Or More Webm Video Blobs Is it possible to to concatenate parts of two or more video… How To Play GSM Files In HTML5 I would like to play a GSM audio file within my HTML5 page … JQuery CSS - Slider Swipe Animation UPDATE: Updated the code and added a better example to clea… December 2024 (1) November 2024 (36) October 2024 (47) September 2024 (20) August 2024 (202) July 2024 (183) June 2024 (411) May 2024 (686) April 2024 (466) March 2024 (819) February 2024 (907) January 2024 (761) December 2023 (842) November 2023 (357) October 2023 (583) September 2023 (280) August 2023 (317) July 2023 (276) June 2023 (343) May 2023 (211) April 2023 (141) March 2023 (141) February 2023 (168) January 2023 (258) December 2022 (118) November 2022 (231) October 2022 (829) September 2022 (165) August 2022 (299) July 2022 (90) Menu Halaman Statis Beranda © 2022 - Html5 Playground