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  • 汇总单号信息,给秘书发邮件

    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.Iterator;
    import java.util.List;
    import java.util.Map;
    import java.util.Set;
    
    public class Lists {
        public static void main(String[] args) {
            List list = new ArrayList();
            list.add(new Student("00220581", "SSE201601"));
            list.add(new Student("00220582", "SSE201602"));
            list.add(new Student("00220583", "SSE201603"));
            list.add(new Student("00220581", "SSE201604"));
            list.add(new Student("00220581", "SSE201605"));
            list.add(new Student("00220582", "SSE201606"));
            list.add(new Student("00220582", "SSE201607"));
            list.add(new Student("00220583", "SSE201608"));
            groupSecretrySendMail(list);
        }
    
        public static void groupSecretrySendMail(List list) {
            Map mailList = new HashMap();
            Map mailParam = new HashMap();
            Iterator it = list.iterator();
            Student s = null;
            while (it.hasNext()) {
                s = (Student) it.next();
                StringBuffer listContent = (StringBuffer)mailList.get(s.getUu_code());
                if(null == listContent){
                    listContent = new StringBuffer();
                }
                listContent = listContent.append(s.getFe_expenseno()).append(",");
                mailList.put(s.getUu_code(),listContent);
                s = null;
            }
            
            Set set  = mailList.keySet();
            Iterator iterator = set.iterator();
            while(iterator.hasNext()){
                String key = (String)iterator.next();
                System.out.println(key);
                System.out.print(mailList.get(key));
                System.out.println();
            }
        }
    }
    
    class Student {
        private String uu_code;
        private String fe_expenseno;
    
        public Student(String uu_code, String fe_expenseno) {
            super();
            this.uu_code = uu_code;
            this.fe_expenseno = fe_expenseno;
        }
    
        public String getUu_code() {
            return uu_code;
        }
    
        public void setUu_code(String uu_code) {
            this.uu_code = uu_code;
        }
    
        public String getFe_expenseno() {
            return fe_expenseno;
        }
    
        public void setFe_expenseno(String fe_expenseno) {
            this.fe_expenseno = fe_expenseno;
        }
    
    }
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  • 原文地址:https://www.cnblogs.com/cxxjohnson/p/5760554.html
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