方法上的Bean验证 [英] Bean Validation on method
问题描述
public class Register {
@NotNull private String password;
@NotNull private String passwordRepeat;
@AssertTrue private boolean comparePasswords() {
return password.equals(passwordRepeat);
}
private Set<ConstraintViolation<Register>> violations;
public void doRegister(AjaxBehaviorEvent event) {
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
violations = validator.validate(this);
if(violations.isEmpty()) {
// This occurs
}
}
}
如果我的密码都不为空，我的验证将会通过，但它们是不同的。
似乎不会考虑最后一个约束，尽管我不知道为什么。有没有人有建议？
My validation will pass if both my passwords are not null, but they are different. Seems like the last constraint will not be taken into account, though I do not have a clue why. Does anyone have suggestion?
不，我不是在搜索@Matches或simular自定义验证器的任何实现。我只想解决这个问题。
And no, I am not searching for any implementations of @Matches or simular custom validators. I just would like to get this problem solved.
提前致谢。
更新1
我已经对此进行了一些测试，希望结果能够提供所需的信息。
I have run some tests regarding this, hopefully the results will provide needed information.
Bean.java
@Named
@RequestScoped
public class Bean {
@NotNull private String example1;
@NotNull private String example2;
@AssertTrue private boolean examplesMatch() { return example1.equals(example2); }
private Set<ConstraintViolation<Bean>> violations;
private FacesContext context;
private Validator validator;
@PostConstruct
public void init() {
context = FacesContext.getCurrentInstance();
validator = Validation.buildDefaultValidatorFactory().getValidator();
example1 = "abc";
example2 = "def";
runValidation(false, 1);
example1 = "abc";
example2 = "abc";
runValidation(true, 2);
example1 = "abc";
example2 = null;
runValidation(false, 3);
}
private void runValidation(boolean assertion, int testNr) {
FacesMessage message;
violations = validator.validate(this);
if(violations.isEmpty() == assertion) {
message = new FacesMessage("Passed test nr. " + testNr);
}
else {
message = new FacesMessage("Failed test nr. " + testNr);
}
context.addMessage(FacesMessage.FACES_MESSAGES, message);
}
index.xhtml
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html">
<head>
<title>TODO supply a title</title>
</head>
<body>
#{bean}
<h:messages />
</body>
</html>
结果
beanvalidation.Bean@31c5c3da
Failed test nr. 1
Passed test nr. 2
Passed test nr. 3
推荐答案
examplesMatch（）不是有效的 Java Bean 布尔属性getter。它需要以 get 或 开头。
examplesMatch() is not a valid Java Beans boolean property getter. It needs to start with get or is.
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