spring mvc - Input to the arraylist with Thymeleaf -


i have simple class contains 2 string,1 integer , 1 arraylist<string>. using spring mvc , thymeleaf i'm trying craete form, can insert data create object. sadly have no idea how handle arraylist. got far:

<!doctype html> <html> <head> <meta charset="utf-8"> <title>insert title here</title> </head> <body>     <h1>f o r m</h1>     <form th:action="@{/form/person}" th:object="${person}" method="post">         <table>             <tr>                 <td>name:</td>                 <td><input type="text" th:field="*{name}" /></td>                 <td th:if="${#fields.haserrors('name')}" th:errors="*{name}">name                     error</td>             </tr>             <tr>                 <td>age:</td>                 <td><input type="number" th:field="*{age} " /></td>                 <td th:if="${#fields.haserrors('age')}" th:errors="*{age}">age                     error</td>             </tr>             <tr>                 <td>city:</td>                 <td><input type="text" th:field="*{city}" /></td>                 <td th:if="${#fields.haserrors('city')}" th:errors="*{city}">city                     error</td>             </tr>             <tr>                 <td><input type="submit" value="submit" /></td>                 <td><input type="reset" value="reset" /></td>             </tr>         </table>     </form> </body> </html>

for example if list name city then:

 <input type="text" th:field="*{city[__${index}__]}" />

where index index in list. when example put string on second index on first index have null.


Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm ...
Read more

Add new key value to json node in java -

i have json file : { "id":1, "name":"abc", "addressdetails": { "city":"newyork" } } i wanted add 1 more key-value ("pincode" : "414141") node 'addressdetails'. i tried using : objectmapper mapper = new objectmapper(); jsonnode root = mapper.readtree(new file("d://test.json")); objectnode node = mapper.createobjectnode(); node.with("addressdetails").put("pincode", "414141"); but it's not getting added, there way can ? you can try you should modify file path objectmapper mapper = new objectmapper(); objectnode nodes = mapper.readvalue(new file("d:\\test.txt"), objectnode.class); nodes.with("addressdetails").put("pincode", "414141"); mapper.writer().writevalue(new file("d:\\test.txt"), nodes);
Read more