Spring validation @AssertTrue

Question

How do I display on a view jsp validation error message that occurs as a result of @AssertTrue annotation? It isn't tied to a specific field, but I am using it to validate a combination of fields. If I use <form:errors path="*"/> that will display all the errors for that form?

score 32 · Answer 1 · edited May 23 '17 at 12:01

32

From what I have tested it is important HOW you name your test function. And you should name it properly.

You do not need field, getter or setter but your function HAVE TO start with 'is*' statement.

fe.

@AssertTrue
public boolean isConditionTrue() {
   ...
   ...


}

or

@AssertTrue
public boolean isSomethingElseOk() {
   ...
   ...
}

Though, you need a field and getter/setter if you need to use a error form with path, like:

<form:errors path="someFieldToDisplay" />

But i think this is quite obvious.

Some schema problem which I didn't step into but might be helpful:

This might be helpful as well: lack of error messages.

But if you use schema without version tag, it uses the newest version by default.

edited May 23 '17 at 12:01

Community

1
1

answered Sep 25 '13 at 14:09

Atais

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Renaming the method from valid() to isValid() fixed it for me with Spring using Hibernate Validation. – bernie Mar 31 '16 at 22:04
Renaming to is* fixed for me, too. Thanks for the answer. This should be accepted as correct answer. – Michael Hegner Oct 22 '17 at 13:22
1

This indeed should be the accepted answer. I had no idea about the necessary naming convention – tkralik Dec 19 '17 at 17:05
This is crazy. Thank you. – Tobia Dec 30 '20 at 14:48

score 10 · Accepted Answer · answered May 19 '10 at 00:45

10

Declaring a boolean property is what seems to work for this. So if there is:

@AssertTrue
public boolean isConditionTrue() {
   ...
   ...
}

then declaring a property like:

private boolean conditionTrue;

works.

answered May 19 '10 at 00:45

Eqbal

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score 2 · Answer 3 · answered Jan 26 '14 at 08:45

2

You should name your property like this:

@AssertTrue(message = "....")
private boolean conditionTrue; //***NOT isConditionTrue***

public boolean isConditionTrue() {
    return conditionTrue;
}

public void setConditionTrue(boolean conditionTrue) {
    this.conditionTrue= conditionTrue;
}

<form:errors path="*"/> or
<form:errors path="conditionTrue"/>

answered Jan 26 '14 at 08:45

hunglevn

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when message will get display ? – amoljdv06 Dec 02 '18 at 10:30

Spring validation @AssertTrue

3 Answers3

Some schema problem which I didn't step into but might be helpful:

Linked