struts2 OGNL的用法介绍(三)
s().put("homeNumber", "110");
student.getContactWays().put("companyNumber", "119");
student.getContactWays().put("mobilePhone", "112");
context.put("classroom", classroom);
context.put("student", student);
context.setRoot(classroom);
/* 获得classroom的students集合*/
Object collection = Ognl.getValue("students", context, context.getRoot());
System.out.println("students collection is ：" + collection);
/* 获得classroom的students集合*/
Object firstStudent = Ognl.getValue("students[0]", context, context.getRoot());
System.out.println("first student is : " + firstStudent);
/* 调用集合的方法*/
Object size = Ognl.getValue("students.size()", context, context.getRoot());
System.out.println("students collection size is :" + size);
System.out.println("--------------------------飘逸的分割线--------------------------");
Object mapCollection = Ognl.getValue("#student.contactWays", context, context.getRoot());
System.out.println("mapCollection is :" + mapCollection);
Object firstElement = Ognl.getValue("#student.contactWays['homeNumber']", context, context.getRoot());
System.out.println("the first element of contactWays is :" + firstElement);
System.out.println("--------------------------飘逸的分割线--------------------------");
/* 创建集合*/
Object createCollection = Ognl.getValue("{'aa','bb','cc','dd'}", context, context.getRoot());
System.out.println(createCollection);
/* 创建Map集合*/
Object createMapCollection = Ognl.getValue("#{'key1':'value1','key2':'value2'}", context, context.getRoot());
System.out.println(createMapCollection);
}
}