java - Unable to bind spring form checkbox -
i trying display full name, along checkboxes supervisor , manager. these 2 checkboxes checked if person has values these true.
what trying display users full name , supervior , manager columns having checkboxes , these checked or unchecked, , when form submitted changes binded well. tried model attribute don't have luck.
here's have far.
controller
@controller @requestmapping("/person.html") public class personscontroller { @autowired private personservice personservice; @requestmapping(method = requestmethod.get) public string initform(@modelattribute("personview")personview personview, bindingresult result, model model) { list<person> persons= personservice.getpersonlist(); personview persondata = new personview(); personview.setpersonlist(persons); model.addattribute("personview", persondata); return "member"; } @requestmapping(method = requestmethod.post) public string submitform(model model, personview personview, bindingresult result) { system.out.println("controller runs"); model.addattribute("persons", personview); return "successmember"; } } view
public class personview { private boolean issupervisor; private boolean ismanager; private list<person> personlist; public boolean issupervisor() { return issupervisor; } public void setsupervisor(boolean issupervisor) { this.issupervisor = issupervisor; } public boolean ismanager() { return ismanager; } public void setmanager(boolean ismanager) { this.ismanager = ismanager; } public list<person> getpersonlist() { return personlist; } public void setpersonlist(list<person> personlist) { this.personlist = personlist; } } domain
public class person { private string fullname; private boolean issupervisor; private boolean ismanager; public string getfullname() { return fullname; } public void setfullname(string fullname) { this.fullname = fullname; } public boolean getissupervisor() { return issupervisor; } public void setissupervisor(boolean issupervisor) { this.issupervisor = issupervisor; } public boolean getismanager() { return ismanager; } public void setismanager(boolean ismanager) { this.ismanager = ismanager; } } jsp
<html> <title>persons information</title> </head> <body> <form:form method="post" modelattribute="personview"> <table> <tr> <th>full name</th> <th>supervisor</th> <th>manager</th> </tr> <c:foreach var="person" items="${personview.personlist}" varstatus="row"> <tr> <td>{person.fullname}</td> <td><form:checkbox path="issupervisor" value="${person.issupervisor}" /></td> <td><form:checkbox path="ismanager" value="${person.ismanager}" /></td> </tr> </c:foreach> <tr> <td><input type="submit" name="submit" value="submit"> </td> </tr> <tr> </table> </form:form> </body> </html> any suggestion
the problem here need bind parameters corresponding person in list. if @ generated html see name attributes of checkboxes same i.e. on form submit there no way of determining parameter applies person.
as cannot bind raw list need keep wrapper: needs below:
public class personview { private list<person> personlist; public list<person> getpersonlist() { return personlist; } public void setpersonlist(list<person> personlist) { this.personlist = personlist; } } person minor adjustments:
public class person { private string fullname; private boolean issupervisor; private boolean ismanager; public string getfullname() { return fullname; } public void setfullname(string fullname) { this.fullname = fullname; } public boolean issupervisor() { return issupervisor; } public void setsupervisor(boolean issupervisor) { this.issupervisor = issupervisor; } public boolean ismanager() { return ismanager; } public void setmanager(boolean ismanager) { this.ismanager = ismanager; } } your jsp loop needs below:
<c:foreach var="person" items="${personview.personlist}" varstatus="row"> <tr> <td>{person.fullname}</td> <td><form:checkbox path="personlist[row.index].supervisor" value="true" /></td> <td><form:checkbox path="personlist[row.index].manager" value="true" /></td> </tr> </c:foreach> your controller:
@controller @requestmapping("/person.html") public class personscontroller { @autowired private personservice personservice; @requestmapping(method = requestmethod.get) public string initform() { return "member"; } @requestmapping(method = requestmethod.post) public string submitform(@modelattribute personview personview) { model.addattribute("persons", personview); return "successmember"; } @modelattribute public personview getpersonview(){ list<person> persons= personservice.getpersonlist(); personview pv = new personview(); pv.setpersonlist(persons); return pv; } } **all depends on order of list in form handler being same loaded rendering form , no people having been added in mean time.
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