java操作excel的方法

writableworkbook workbook = workbook.createworkbook(new file("d:\\output.xls")); 
 writablesheet sheet = workbook.createsheet("项目简报", 0); 
 //样式 
 writablefont sonti18font = new writablefont(writablefont.createfont("宋体"), 18,writablefont.bold); 
 writablefont sonti12font = new writablefont(writablefont.createfont("宋体"), 12,writablefont.bold); 
 writablefont sonti12fontnobold = new writablefont(writablefont.createfont("宋体"), 12,writablefont.no_bold); 
 writablecellformat font18subject = new writablecellformat (sonti18font); 
 writablecellformat font12subject = new writablecellformat (sonti12font); 
 writablecellformat font12subjectnobold = new writablecellformat (sonti12fontnobold); 
 font18subject.setalignment(jxl.format.alignment.centre); 
 font18subject.setverticalalignment(jxl.format.verticalalignment.centre);  
 font18subject.setborder(jxl.format.border.all,jxl.format.borderlinestyle.thin);  
 font12subject.setalignment(jxl.format.alignment.left); 
 font12subject.setverticalalignment(jxl.format.verticalalignment.centre);  
 font12subject.setborder(jxl.format.border.all,jxl.format.borderlinestyle.thin); 
 font12subjectnobold.setalignment(jxl.format.alignment.left); 
 font12subjectnobold.setverticalalignment(jxl.format.verticalalignment.centre);  
 font12subjectnobold.setborder(jxl.format.border.all,jxl.format.borderlinestyle.thin); 
 //样式 end 
 //项目简介信息 
 sheet.addcell(new label(0, 0, projreportparam.getproj_name() + "项目简报",font18subject)); 
 sheet.mergecells(0, 0, 5, 0); 
 sheet.addcell(new label(0,1,"项目编号",font12subject)); 
 sheet.addcell(new label(1,1,projreportparam.getproj_code(),font12subjectnobold)); 
 sheet.addcell(new label(2,1,"项目经理",font12subject)); 
 sheet.addcell(new label(3,1,projreportparam.getemp_name(),font12subjectnobold)); 
 sheet.addcell(new label(4,1,"立项部门",font12subject)); 
 sheet.addcell(new label(5,1,projreportparam.getdept_name(),font12subjectnobold)); 
 sheet.addcell(new label(0,2,"计划发生成本",font12subject)); 
 sheet.addcell(new label(1,2,projreportparam.getplan_cost(),font12subjectnobold)); 
 sheet.addcell(new label(2,2,"实际发生成本",font12subject)); 
 sheet.addcell(new label(3,2,projreportparam.getactual_cost(),font12subjectnobold)); 
 sheet.addcell(new label(0,3,"项目简介",font12subject)); 
 sheet.addcell(new label(1,3,projreportparam.getproj_desc(),font12subjectnobold)); 
 sheet.mergecells(1, 3, 5, 3); 
 //项目简介信息 end 
 //里程碑 
 sheet.addcell(new label(0,5,"里程碑",font18subject)); 
 sheet.mergecells(0, 5, 5, 5); 
 sheet.addcell(new label(0,6,"阶段名称",font12subject)); 
 sheet.addcell(new label(1,6,"任务名称",font12subject)); 
 sheet.addcell(new label(2,6,"实施人",font12subject)); 
 sheet.addcell(new label(3,6,"计划起止时间",font12subject)); 
 sheet.addcell(new label(4,6,"实际起止时间",font12subject)); 
 sheet.addcell(new label(5,6,"状态",font12subject)); 
 int i = 7;//行 
 for(projreportparamminfo projreportparamminfo : projreportparam.getprojreportparamminfolist()){ 
  sheet.addcell(new label(0,i,projreportparamminfo.getpharse_name(),font12subjectnobold)); 
  sheet.addcell(new label(1,i,projreportparamminfo.gettask_item(),font12subjectnobold)); 
  sheet.addcell(new label(2,i,projreportparamminfo.getemp_name(),font12subjectnobold)); 
  sheet.addcell(new label(3,i,utils.formatdate(projreportparamminfo.gettask_plan_sd()) + " / " + utils.formatdate(projreportparamminfo.gettask_plan_fd()),font12subjectnobold)); 
  sheet.addcell(new label(4,i,utils.formatdate(projreportparamminfo.gettask_actual_sd()) + " / " + utils.formatdate(projreportparamminfo.gettask_actual_fd()),font12subjectnobold)); 
  sheet.addcell(new label(5,i,projreportparamminfo.gettask_state(),font12subjectnobold)); 
  i++; 
 } 
 //里程碑 end 
 //项目组成员及干系人 
 int j = 1+i;//行 
 sheet.addcell(new label(0,j,"项目组成员及干系人",font18subject)); 
 sheet.mergecells(0, j, 5, j); 
 sheet.addcell(new label(0,j+1,"序号",font12subject)); 
 sheet.addcell(new label(1,j+1,"姓名",font12subject)); 
 sheet.addcell(new label(2,j+1,"角色",font12subject)); 
 sheet.addcell(new label(3,j+1,"进入项目组时间",font12subject)); 
 sheet.addcell(new label(4,j+1,"离开项目组时间",font12subject)); 
 sheet.addcell(new label(5,j+1,"累计工时",font12subject)); 
 int m = 1;//序号 
 int n = j+2;//行 
 for(projreportparamhrinfo projreportparamhrinfo : projreportparam.getprojreportparamhrinfolist()){ 
  sheet.addcell(new label(0,n,m+"",font12subjectnobold)); 
  sheet.addcell(new label(1,n,projreportparamhrinfo.getemp_name(),font12subjectnobold)); 
  sheet.addcell(new label(2,n,projreportparamhrinfo.getrole_name(),font12subjectnobold)); 
  sheet.addcell(new label(3,n,utils.formatdate(projreportparamhrinfo.gethr_start_date()),font12subjectnobold)); 
  sheet.addcell(new label(4,n,utils.formatdate(projreportparamhrinfo.gethr_release_date()),font12subjectnobold)); 
  sheet.addcell(new label(5,n,projreportparamhrinfo.gettotal_manhour(),font12subjectnobold)); 
  m++; 
  n++; 
 } 
 //项目组成员及干系人 end 
 //本期工作内容 
 int k = n + 1;//行 
 sheet.addcell(new label(0,k,"本期工作内容("+startdate+"至"+enddate+")",font18subject)); 
 sheet.mergecells(0, k, 6, k); 
 sheet.addcell(new label(0,k+1,"任务编号",font12subject)); 
 sheet.addcell(new label(1,k+1,"任务名称",font12subject)); 
 sheet.addcell(new label(2,k+1,"计划起止时间",font12subject)); 
 sheet.addcell(new label(3,k+1,"实际起止时间",font12subject)); 
 sheet.addcell(new label(4,k+1,"计划工时",font12subject)); 
 sheet.addcell(new label(5,k+1,"实际工时",font12subject)); 
 sheet.addcell(new label(6,k+1,"实施人员",font12subject)); 
 int p = k + 2;//行 
 for(projreportparamtaskinfo projreportparamtaskinfo : projreportparam.getthisprojreportparamtaskinfolist()){ 
  sheet.addcell(new label(0,p,projreportparamtaskinfo.gettask_code(),font12subjectnobold)); 
  sheet.addcell(new label(1,p,projreportparamtaskinfo.gettask_item(),font12subjectnobold)); 
  sheet.addcell(new label(2,p,utils.formatdate(projreportparamtaskinfo.gettask_plan_sd()) + " / " + utils.formatdate(projreportparamtaskinfo.gettask_plan_fd()),font12subjectnobold)); 
  sheet.addcell(new label(3,p,utils.formatdate(projreportparamtaskinfo.gettask_actual_sd()) + " / " + utils.formatdate(projreportparamtaskinfo.gettask_actual_fd()),font12subjectnobold)); 
  sheet.addcell(new label(4,p,projreportparamtaskinfo.gettask_plan_manhour(),font12subjectnobold)); 
  sheet.addcell(new label(5,p,projreportparamtaskinfo.gettask_actual_manhour(),font12subjectnobold)); 
  sheet.addcell(new label(6,p,projreportparamtaskinfo.getplan_emp_name(),font12subjectnobold)); 
  p++; 
 } 
 //本期工作内容 end 
 //下周工作内容 
 int q = p + 1;//行 
 sheet.addcell(new label(0,q,"下周工作内容",font18subject)); 
 sheet.mergecells(0, q, 5, q); 
 sheet.addcell(new label(0,q+1,"任务编号",font12subject)); 
 sheet.addcell(new label(1,q+1,"任务名称",font12subject)); 
 sheet.addcell(new label(2,q+1,"计划开始时间",font12subject)); 
 sheet.addcell(new label(3,q+1,"计划结束时间",font12subject)); 
 sheet.addcell(new label(4,q+1,"计划工时",font12subject)); 
 sheet.addcell(new label(5,q+1,"实施人员",font12subject)); 
 int r = q + 2; 
 for(projreportparamtaskinfo projreportparamtaskinfo : projreportparam.getnextprojreportparamtaskinfolist()){ 
  sheet.addcell(new label(0,r,projreportparamtaskinfo.gettask_code(),font12subjectnobold)); 
  sheet.addcell(new label(1,r,projreportparamtaskinfo.gettask_item(),font12subjectnobold)); 
  sheet.addcell(new label(2,r,utils.formatdate(projreportparamtaskinfo.gettask_plan_sd()),font12subjectnobold)); 
  sheet.addcell(new label(3,r,utils.formatdate(projreportparamtaskinfo.gettask_plan_fd()),font12subjectnobold)); 
  sheet.addcell(new label(4,r,projreportparamtaskinfo.gettask_plan_manhour(),font12subjectnobold)); 
  sheet.addcell(new label(5,r,projreportparamtaskinfo.getplan_emp_name(),font12subjectnobold)); 
  r++; 
 } 
 //下周工作内容 end 
 //项目存在的问题及解决 
 int s = r + 1;//行 
 sheet.addcell(new label(0,s,"项目存在的问题及解决",font18subject)); 
 sheet.mergecells(0, s, 8, s); 
 sheet.addcell(new label(0,s+1,"识别日期",font12subject)); 
 sheet.addcell(new label(1,s+1,"问题描述",font12subject)); 
 sheet.addcell(new label(2,s+1,"所属风险",font12subject)); 
 sheet.addcell(new label(3,s+1,"解决方法",font12subject)); 
 sheet.addcell(new label(4,s+1,"解决人",font12subject)); 
 sheet.addcell(new label(5,s+1,"计划开始时间",font12subject)); 
 sheet.addcell(new label(6,s+1,"计划完成时间",font12subject)); 
 sheet.addcell(new label(7,s+1,"问题状态",font12subject)); 
 sheet.addcell(new label(8,s+1,"总结",font12subject)); 
 int t = s + 2;//行 
 for(projreportparamriskinfo projreportparamriskinfo : projreportparam.getprojreportparamriskinfolist()){ 
  sheet.addcell(new label(0,t,utils.formatdate(projreportparamriskinfo.getsts_date()),font12subjectnobold)); 
  sheet.addcell(new label(1,t,projreportparamriskinfo.getproj_issue_item(),font12subjectnobold)); 
  sheet.addcell(new label(2,t,projreportparamriskinfo.getproj_risk_item(),font12subjectnobold)); 
  sheet.addcell(new label(3,t,projreportparamriskinfo.getissue_resolve_method(),font12subjectnobold)); 
  sheet.addcell(new label(4,t,projreportparamriskinfo.getissue_resolve_emp(),font12subjectnobold)); 
  sheet.addcell(new label(5,t,utils.formatdate(projreportparamriskinfo.getissue_plan_date()),font12subjectnobold)); 
  sheet.addcell(new label(6,t,utils.formatdate(projreportparamriskinfo.getissue_actual_date()),font12subjectnobold)); 
  sheet.addcell(new label(7,t,projreportparamriskinfo.getissue_state(),font12subjectnobold)); 
  sheet.addcell(new label(8,t,projreportparamriskinfo.getissue_summarize(),font12subjectnobold)); 
  t++; 
 } 
 //项目存在的问题及解决 end 
 workbook.write(); 
 workbook.close(); 
//生成项目简报的程序