# reflection

**Repository Path**: ganluting/reflection

## Basic Information

- **Project Name**: reflection
- **Description**: 基础反射框架
- **Primary Language**: Java
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2019-09-20
- **Last Updated**: 2021-02-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# reflection
# 版本变更
1.1 主要功能

1.0 主要功能

#### 介绍
基础反射框架,方便快捷实现对类或包进行操作

### 使用说明
#### 1.包扫描说明
###### 简单获取包下所有类   
```
  Reflection reflection = Reflection.packageScan("com.flex.reflection.test").build();
  //所有所有类元信息
  reflection.getAllClasses();
```
###### 获取包含注解类
```
  Reflection reflection = Reflection
  .packageScan("com.flex.reflection.test")
  .includeAnnotation(PropertyTest.class)
  .build();
```
#### 2.类元信息说明
###### 直接加载类,并设置field值
```$xslt
 MetaClass metaClass = MetaClass.of(TestCases.class).build();
 metaClass.invokeSetField("property","hello world");
```

###### 监听值,监听方法调用
```$xslt
 MetaClass metaClass = MetaClass
 .of(TestCases.class)
 .setPropertyListener(new PropertyListener() {
             @Override
             public void readProperty(String propertyName, Object fieldValue) {
                 System.out.println("[read]"+propertyName+"=>"+fieldValue);
             }
 
             @Override
             public Object writeProperty(String propertyName, Object oldValue, Object newValue) {
                 System.out.println("[write]"+propertyName+"=>"+"old["+oldValue+"],new["+newValue+"]");
                 return null;
             }
 })
 .setEventMethodHandler(new Handler() {
               @Override
               public void beforeHandler(MetaObj metaObj, MethodWrapper methodReturnWrapper) {
                   System.out.println("before");
               }
   
               @Override
               public Object afterHandler(MetaObj metaObj, MethodWrapper methodReturnWrapper) {
                   System.out.println("after，执行结果:"+methodReturnWrapper.getResult());
                   return null;
               }
       }).build();
 metaClass.invokeSetField("property","hello world");
```

###### 通过字符串获取对象属性值
```
 MetaClass metaClass = MetaClass.of(TestCases.class).build();
 //数组方法获取
 metaClass.getExpressionField("list[0]");
 //map方法获取,可通过名字或索引
 metaClass.getExpressionField("map[aa]");
 metaClass.getExpressionField("map[0]");
 //普通变量获取
 metaClass.getExpressionField("a.b.bb");
 //动态变量绑定
 metaClass.getExpressionField("map[{index}].{ss}", new BindExpressionHandler() {
     @Override
     public String toBind(String variableName) {
         if (variableName.equalsIgnoreCase("ss")) {
             return "bb";
         }
         if (variableName.equalsIgnoreCase("index")) {
             return "0";
         }
         return "";
     } 
 });
```