tomcat使用jdk1.6启动项目的报错

风悦 — Sat, 29 Sep 2012 12:25:00 GMT

2011-07-15 12:50 java.lang.ClassFormatError: Illegal class name "[L[Ljava/lang/String;;" in class file根据网上资料看http://fm928.blog.163.com/blog/static/748135201123115355946/

在java服务（tomcat）启动时增加参数增加参数-Xverify:none

catalina.bat最后
%_EXECJAVA% %JAVA_OPTS% %CATALINA_OPTS% -Xverify:none %DEBUG_OPTS% -Djava.endorsed.dirs="%JAVA_ENDORSED_DIRS%" -classpath "%CLASSPATH%" -Dcatalina.base="%CATALINA_BASE%" -Dcatalina.home="%CATALINA_HOME%" -Djava.io.tmpdir="%CATALINA_TMPDIR%" %MAINCLASS% %CMD_LINE_ARGS% %ACTION%

就好了。应为jdk bug

风悦 2012-09-29 20:25 发表评论

memcached应用随笔

风悦 — Thu, 24 Nov 2011 06:07:00 GMT

Memcached 是一个高性能的分布式内存对象缓存系统，用于动态Web应用以减轻数据库负载。相信大家对它并不陌生，下面把我最近开发的项目中用到的一个例子分享出来，给大家一起学习。在访问memcached时，通过synchronized实现同步。在需要操作memcached的地方可以很方便地通过类CacheFactory进行。废话少说，直接贴上代码。

1import org.apache.log4j.BasicConfigurator;
2import org.apache.log4j.Logger;
3
4
5import com.danga.MemCached.MemCachedClient;
6import com.danga.MemCached.SockIOPool;
7
8
9/**
10 * memcache工厂类
11 *
12 * @author fengyue
13 * @date Feb 16, 2011
14 */
15public class CacheFactory {
16private static final Logger logger = Logger.getLogger(CacheFactory.class);
17private static MemCachedClient memcache = null;
18
19
20public static MemCachedClient getCache() {
21if (memcache == null) {
22synchronized (CacheFactory.class) {
23if (memcache == null)
24getInstance();
25}
26}
27
28
29return memcache;
30}
31
32
33private static void getInstance() {
34try {
35BasicConfigurator.configure();
36String serverI = "10.185.23.17:13000";
37String[] servers = { serverI };
38SockIOPool pool = SockIOPool.getInstance();
39pool.setServers(servers);
40pool.setFailover(true);
41pool.setInitConn(10);
42pool.setMinConn(5);
43pool.setMaxConn(250);
44pool.setMaintSleep(30);
45pool.setNagle(false);
46pool.setSocketTO(3000);
47
48
49pool.initialize();
50memcache = new MemCachedClient();
51memcache.add("test", "test1111111111111111111");
52
53
54} catch (Exception e) {
55logger.debug("failed to init memcache");
56e.printStackTrace();
57}
58}
59
60
61
62
63public static void main(String[] argvs) {
64//往memcache存入缓存值
65CacheFactory.getCache().set("myloginkey“, "1", new Date(3 * 60 * 60 * 1000));
66//取出值
67CacheFactory.getCache().get("myloginkey");
68//删除
69CacheFactory.getCache().delete("myloginkey");
70return;
71}
72}

风悦 2011-11-24 14:07 发表评论

C++博客-fengyue-随笔分类-Java

tomcat使用jdk1.6启动项目的报错

memcached应用随笔