我有一个名为 Person 的模型类和一个包含人员列表的视图范围托管bean PersonController
我创建了一个复合组件来获取此人员列表。我想要做的是直接从复合组件中设置名为 TestCompositeComponent 的其他托管bean中的人员列表。任何解决方案?..这是我的代码:
@ManagedBean
@ViewScoped
public class PersonController {
private List<Person> persons;
public List<Person> getPersons() {
return persons;
}
public void setPersons(List<Person> persons) {
this.persons = persons;
}
@PostConstruct
public void init() {
persons = new ArrayList<>();
Person person1 = new Person();
person1.setFirstname("blah");
person1.setLastname("blah");
Person person2 = new Person();
person2.setFirstname("blah");
person2.setLastname("blah");
persons.add(person1);
persons.add(person2);
}
}
@ManagedBean
@ViewScoped
public class TestCompositeComponentController {
private List<Person> persons;
public List<Person> getPersons() {
return persons;
}
public void setPersons(List<Person> persons) {
this.persons = persons;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html >
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface componentType="testCompositeController">
<composite:attribute name="persons" />
</composite:interface>
<composite:implementation>
<h:outputText value="composite"></h:outputText>
</composite:implementation>
</html>
<!DOCTYPE html >
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:test="http://java.sun.com/jsf/composite/test"
xmlns:f="http://java.sun.com/jsf/core">
<h:head></h:head>
<h:body>
<test:test persons="#{personController.persons}" />
</h:body>
</html>
答案 0 :(得分:0)
是否要将从PersonController传递的List人员更改为TestCompositeComponentController返回PersonController?
如果是这种情况,请将PersonController的范围更改为@SessionScoped并将其注入TestCompositeComponentController。这样您就可以修改PersonController中的人员了。
@ManagedBean
@ViewScoped
public class TestCompositeComponentController {
private List<Person> persons;
@Inject PersonController personController;
public List<Person> getPersons() {
return persons;
}
public void setPersons(List<Person> persons) {
this.persons = persons;
}
public void updateTheOtherList() {
personController.setPersons(this.persons);
}
}
在实际案例中,复合组件中的修改将保留在数据库中,当您向后导航时,人员列表上的新提取将显示更改。