常用傻瓜代码

一些老要用的代码,写下来,年纪大了,记不住,hoho

for (Iterator i = groups.iterator(); i.hasNext();) {
     Group group = (Group) i.next();
     System.out.println(group.get**());
   }

2.String int 的互相转换

String test="1";
int i=Integer.parseInt(test);
int i=1;
String test=Integer.toString(i);

http://hi.baidu.com/9prior/blog/item/41382b2535bc946535a80f3e.html

3.hidden

<input type="hidden" id="isok" value="true" />

4.时间问题

Date date=new Date();
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
sdf.format(date);

5.integer之间的比较

a.equals(new Integer(1))

6.遍历map

public SimpleOperationRepostitory(Map<String, Integer> initRepos) {
		this();
		for (Entry<String, Integer> e : initRepos.entrySet()) {
			repos
				.put(e.getKey(), BaseOperation.build(e.getValue(), e.getKey()));
		}
	}

7.switch用法

public boolean doAssert(Object value) {
		if (value instanceof String) {
			String str = (String) value;

			switch (option) {
			case ANCESTOR_OR_EQUAL:
				return str.startsWith(hierachyLimit);
			case ANCESTOR:
				return str.startsWith(hierachyLimit)
						&& str.length() > hierachyLimit.length();
			case DESCENDANT_OR_EQUAL:
				return hierachyLimit.startsWith(str);
			case DESCENDANT:
				return hierachyLimit.startsWith(str)
						&& hierachyLimit.length() > str.length();

			default:
				return false;
			}
		}
		return false;
	}

8.简单描写

return result > 0 ? true : false;

9.遍历

Set<String> permissions = new LinkedHashSet<String>();
for (String roleName : roleNames) {

		}

10.类的声明

private static final long serialVersionUID = 1L;

11.log语句

private static final Logger logger = Logger
			.getLogger(VersionDBServiceImpl.class);
logger.debug