1 /**
2 * 将map转换为一个对象
3 *
4 * @param map
5 * @param beanClass
6 * @return
7 * @throws Exception
8 */
9 public static Object mapToObject(Map<String, String> map, Class<?> beanClass)
throws Exception {
10 if (map ==
null)
11 return null;
12
13 Object obj =
beanClass.newInstance();
14
15 BeanInfo beanInfo =
Introspector.getBeanInfo(obj.getClass());
16 PropertyDescriptor[] propertyDescriptors =
beanInfo.getPropertyDescriptors();
17 for (PropertyDescriptor property : propertyDescriptors) {
18 Method setter =
property.getWriteMethod();
19 if (setter !=
null) {
20 setter.invoke(obj, map.get(property.getName()));
21 }
22 }
23
24 return obj;
25 }
26
27 /**
28 * 将对象转换为map
29 *
30 * @param obj
31 * @return
32 * @throws Exception
33 */
34 public static Map<String, String>
obj2Map(Object obj) {
35
36 Map<String, String> map =
new HashMap<String, String>
();
37 // System.out.println(obj.getClass());
38 // 获取f对象对应类中的所有属性域
39 Field[] fields =
obj.getClass().getDeclaredFields();
40 for (
int i = 0, len = fields.length; i < len; i++
) {
41 String varName =
fields[i].getName();
42 varName = varName.toLowerCase();
//将key置为小写，默认为对象的属性
43 try {
44 // 获取原来的访问控制权限
45 boolean accessFlag =
fields[i].isAccessible();
46 // 修改访问控制权限
47 fields[i].setAccessible(
true);
48 // 获取在对象f中属性fields[i]对应的对象中的变量
49 Object o =
fields[i].get(obj);
50 if (o !=
null)
51 map.put(varName, o.toString());
52 // System.out.println("传入的对象中包含一个如下的变量：" + varName + " = " + o);
53 // 恢复访问控制权限
54 fields[i].setAccessible(accessFlag);
55 }
catch (IllegalArgumentException ex) {
56 ex.printStackTrace();
57 }
catch (IllegalAccessException ex) {
58 ex.printStackTrace();
59 }
60 }
61 return map;
62 }
转载于:https://www.cnblogs.com/javallh/p/10477175.html
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