public class Map2BeanUtil {
/**
* Map转换成JavaBean
*
* @param map Map集合
* @param beanClass bean的Class对象
* @param <T> bean的类型
* @return 包含bean属性字段的Map
*/
public static <T> T mapToObject(Map<String, Object> map, Class<T> beanClass) throws IllegalAccessException, InstantiationException {
if (map == null || map.size() == 0){
return beanClass.newInstance();
}
T instance = beanClass.newInstance();
Field[] fields = beanClass.getDeclaredFields();
for (Field f : fields){
int mod = f.getModifiers();
// final 修饰的字段无法赋值
if (Modifier.isStatic(mod) || Modifier.isFinal(mod)){
continue;
}
// 访问私有属性
f.setAccessible(true);
// 设置 value
f.set(instance,map.get(f.getName()));
}
return instance;
}
public static void main(String[] args) {
Map<String, Object> map = new HashMap<>();
map.put("roleName", "影像管理岗");
map.put("roleCode", "Role-2001");
map.put("level", 1);
map.put("createTime", new Date());
map.put("vaild", false);
try {
RoleInfo role = Map2BeanUtil.mapToObject(map, RoleInfo.class);
System.out.println(role.toString());
} catch (Exception e) {
e.printStackTrace();
}
}
static class RoleInfo {
private static String roleName;
private String roleCode;
private final Integer level = 0;
private Date createTime;
private Boolean vaild;
public String getRoleName() {
return roleName;
}
public void setRoleName(String roleName) {
RoleInfo.roleName = roleName;
}
public String getRoleCode() {
return roleCode;
}
public void setRoleCode(String roleCode) {
this.roleCode = roleCode;
}
public Integer getLevel() {
return level;
}
// public void setLevel(Integer level) {
// this.level = level;
// }
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}
public Boolean getVaild() {
return vaild;
}
public void setVaild(Boolean vaild) {
this.vaild = vaild;
}
@Override
public String toString(){
return "RoleInfo[roleName="+roleName +",roleCode="+roleCode+",level="+level+",createTime="+createTime+",vaild="+vaild+"]";
}
}
}
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