IceCovers的专栏

MD5加密代码

日期转换、字符串转换

javamail包 spring框架

@Override public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException { HttpServletRequest request = (HttpServletRequest) req; HttpServletResponse response = (HttpServletResponse) res; HttpSession session = request.getSession(); //是否登录 //开放注册页面 if(null==session.getAttribute("merchantInfo") &&request.getRequestURL().indexOf("regist/merchant/acount.jsp")==-1){ response.sendRedirect(request.getContextPath()); }else{ chain.doFilter(request, response); } } web.xml配置： <filter> <filter-name>accessFilter</filter-name> <filter-class>com.loginFilter</filter-class> </filter> <filter-mapping> <filter-name>accessFilter</filter-name> <url-pattern>/jsp/*</url-pattern> </filter-mapping>

public static void main(String[] args) { // TODO Auto-generated method stub List lst1=new ArrayList(); List lst2=new ArrayList(); UserBean b1=new UserBean(); UserBean b2=new UserBean(); UserBean b3=new UserBean(); UserBean b4=new UserBean(); UserBean b11=new UserBean(); UserBean b12=new UserBean(); UserBean b13=new UserBean(); b1.setName("q"); b1.setJob("IT"); b2.setName("w"); b2.setJob("IT test"); b3.setName("t"); b3.setJob("IT"); b4.setName("q"); b4.setAge("20"); b11.setName("t"); b11.setAge("19"); b11.setJob("IT2"); b12.setName("O"); b13.setName("w"); b13.setAge("10"); b13.setJob("PM"); List lst=new ArrayList(); lst.addAll(lst1); lst.addAll(lst2); System.out.println("合并前值：>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"+lst.size()); printLst(lst); // UserBean bbb=null; for(int i=0;i<lst.size();i++) { UserBean b=(UserBean)lst.get(i); String s=b.getName(); for(int j=i+1;j<lst.size();j++) { UserBean bb=(UserBean)lst.get(j); String s1=bb.getName(); if(s.equals(s1)) { UserBean bbb=new UserBean(); bbb.setName(s1); if(s.equals("t")||s1.equals("t")) System.out.println("o在这！"); if(null!=b.getAge()&&!"".equals(b.getAge())) bbb.setAge(b.getAge()); if(null!=bb.getAge()&&!"".equals(bb.getAge())) bbb.setAge(bb.getAge()); if(null!=b.getJob()&&!"".equals(b.getJob())) bbb.setJob(b.getJob()); if(null!=bb.getJob()&&!"".equals(bb.getJob())) bbb.setJob(bb.getJob()); lst.remove(bb); lst.remove(i); lst.add(i, bbb); continue; } }

java验证程序，包括： /** * 二维数组第一列插入数据 * @param values * @param series * @return */ public static String[][] getTwoArr(Object[][] values ,String[]series) { // String[][] values = {{"12","32","45"},{"10","34","46"},{"18","36","47"}} ; // String[]series={"鞋子","袜子","OTHER"}; int x=0,y=0;//二维数据行列数 for(;x<values.length;x++) { for(;y<values[x].length;y++) ; } String[][]v =new String[x][y+1]; for(int i=values.length-1;i>=0;i--) { for(int n=i;n>=0;n--) { for(int j=values[i].length-1;j>=0;j--) { v[i][j+1]=values[i][j]+""; if(j==0) v[i][0]=series[n]+""; } break; } } return v; }