首页统计调整

src/main/java/com/nis/util/SortList.java

@@ -0,0 +1,86 @@
+package com.nis.util;
+
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+public class SortList<T> {  
+    /** 
+     * @param targetList 目标排序List 
+     * @param sortField 排序字段 
+     * @param sortMode 排序方式 
+     */  
+    @SuppressWarnings({ "unchecked", "rawtypes" })  
+    public void sort(List<T> targetList, final String sortField, final String sortMode) {  
+        Collections.sort(targetList, new Comparator() {  
+            public int compare(Object obj1, Object obj2) {   
+                int retVal = 0;  
+                try {  
+                    Method method1 = ((T)obj1).getClass().getMethod(sortField, null);  
+                    Method method2 = ((T)obj2).getClass().getMethod(sortField, null);  
+                    if (sortMode != null && "desc".equals(sortMode)) {  
+                        retVal = method2.invoke(((T) obj2), null).toString().compareTo(method1.invoke(((T) obj1), null).toString()); // 倒序  
+                    } else {  
+                        retVal = method1.invoke(((T) obj1), null).toString().compareTo(method2.invoke(((T) obj2), null).toString()); // 正序  
+                    }  
+                } catch (Exception e) {  
+                    throw new RuntimeException();  
+                }  
+                return retVal;  
+            }  
+        });  
+    }  
+      
+    /** 
+     * 测试方法 
+     * @param args 
+     */  
+    public static void main(String[] args) {  
+        List<Person> targetList = new ArrayList<Person>();  
+        targetList.add(new Person("zhangsan",11));  
+        targetList.add(new Person("lisi",12));  
+        targetList.add(new Person("wangwu",13));  
+        System.out.println("排序前: " + targetList);  
+          
+        SortList<Person> sortList = new SortList<Person>();  
+        sortList.sort(targetList, "getAge", "desc");  
+          
+        System.out.println("排序后：" +targetList);  
+    }  
+}  
+  
+class Person {  
+    private String name;  
+    private int age;  
+  
+    public Person() {  
+  
+    }  
+  
+    public Person(String name, int age) {  
+        this.name = name;  
+        this.age = age;  
+    }  
+  
+    public String getName() {  
+        return name;  
+    }  
+  
+    public void setName(String name) {  
+        this.name = name;  
+    }  
+  
+    public int getAge() {  
+        return age;  
+    }  
+  
+    public void setAge(int age) {  
+        this.age = age;  
+    }  
+      
+    public String toString(){  
+        return "name: " + this.name + ",age: " + this.age;  
+    }  
+}