开发中有时候需要自己封装分页排序时，List如何对某一属性排序呢，分享一个小实例，大家共勉，希望能对大家有用，请多多指教。

1.Student的Bean如下：

public class Student {

private int age;

private String name;

private String weight;

public String getWeight() {

return weight;

}

public void setWeight(String weight) {

this.weight = weight;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

}

2.按照List中对象的Int类型属性进行排序

/**

* 按照List中的某个Int类型的属性进行排序

* @param list

*/

@SuppressWarnings("unchecked")

public static void sortIntMethod(List list){

Collections.sort(list, new Comparator(){

@Override

public int compare(Object o1, Object o2) {

Student stu1=(Student)o1;

Student stu2=(Student)o2;

if(stu1.getAge()>stu2.getAge()){

return 1;

}else if(stu1.getAge()==stu2.getAge()){

return 0;

}else{

return -1;

}

}

});

System.out.println("/排序之后///");

for(int i=0;i

Student st=(Student)list.get(i);

System.out.println("st.age="+st.getAge()+",st.name="+st.getName());

}

}

3.按照List中对象的String类型的属性进行排序

1)方法一：

/**

* 按照List中的某个String类型的属性进行排序

* @param list

*/

@SuppressWarnings("unchecked")

public static void sortStringMethod(List list){

Collections.sort(list, new Comparator(){

@Override

public int compare(Object o1, Object o2) {

Student stu1=(Student)o1;

Student stu2=(Student)o2;

return stu1.getName().compareTo(stu2.getName());

}

});

System.out.println("/排序之后///");

for(int i=0;i

Student st=(Student)list.get(i);

System.out.println("st.age="+st.getAge()+",st.name="+st.getName());

}

}

2)方法二：

使用java.text.RuleBasedCollator来实现，用来执行区分语言环境的String 比较:

/**

* 按照List中的某个String类型的属性进行排序

* @param list

*/

@SuppressWarnings("unchecked")

public static void sortByRuleBasedCollator(List list){

Collections.sort(list, new Comparator(){

@Override

public int compare(Object o1, Object o2) {

return ((java.text.RuleBasedCollator)java.text.Collator.getInstance(java.util.Locale.CHINA)).compare(((Student)o1).getName(), ((Student)o2).getName());

}

});

System.out.println("/排序之后///");

for(int i=0;i

Student st=(Student)list.get(i);

System.out.println("st.age="+st.getAge()+",st.name="+st.getName());

}

}

4.测试排序的方法

@SuppressWarnings("unchecked")

public static void main(String[] args) {

ArrayList list=new ArrayList();

Student t1=new Student();

t1.setAge(35);

t1.setName("wanglei");

list.add(t1);

Student t2=new Student();

t2.setAge(4);

t2.setName("lisi");

list.add(t2);

Student t3=new Student();

t3.setAge(56);

t3.setName("zhonghua");

list.add(t3);

Student t4=new Student();

t4.setAge(39);

t4.setName("waanglei");

list.add(t4);

System.out.println("/排序之前///");

for(int i=0;i

Student st=(Student)list.get(i);

System.out.println("st.age="+st.getAge()+",st.name="+st.getName());

}

//按照List中的某个Int类型的属性进行排序

sortIntMethod(list);

//按照List中的某个String类型的属性进行排序

sortStringMethod(list);

}

5.结果