同一段代码不同输出结果

price为static变量·················

Consumables 怎么定义的
findByName怎么写的？getPrice怎么写的？

代码都舍不得贴
我看结果应为
cyp.price 20
qyp.price 20 cyp.price 20
qyp.price 20多贴点不就好了运行结果也要是 Ctrl+C 所有的结果啊

可能是2楼说的，但是我的Consumables不是static的啊，下边是全代码，有兴趣的看看
package ztutil;import java.io.File;
import java.util.ArrayList;import jxl.Workbook;
import jxl.format.UnderlineStyle;
import jxl.write.WritableFont;import com.hxsmelt.model.entity.Consumables;
import com.hxsmelt.model.entity.Machine;
import com.hxsmelt.model.entity.Vehicle;
import com.hxsmelt.service.ConsumablesService;
import com.hxsmelt.service.MachineService;
import com.hxsmelt.service.OutputService;
import com.hxsmelt.service.PlanAmountService;
import com.hxsmelt.service.VehicleService;
import com.hxsmelt.service.implement.ConsumablesServiceImplement;
import com.hxsmelt.service.implement.MachineServiceImplement;
import com.hxsmelt.service.implement.OutputServiceImplement;
import com.hxsmelt.service.implement.PlanAmountServiceImplement;
import com.hxsmelt.service.implement.VechicleServiceImplement;
public class Test2 {
private static MachineService mservice = new MachineServiceImplement();
private static ArrayList<Machine> mtotallist = new ArrayList<Machine>();
private static VehicleService vservice = new VechicleServiceImplement();
private static ConsumablesService clservice = new ConsumablesServiceImplement();
private static PlanAmountService paservice = new PlanAmountServiceImplement();
private static OutputService otservice = new OutputServiceImplement(); // private static ArrayList<Consumables> cltotallist = new
// ArrayList<Consumables>();
// private static ArrayList<Vehicle> vtotallist = new ArrayList<Vehicle>();
// private static ConsumeService cservice = new ConsumeServiceImplement();
// private static ArrayList<Consume> ctotallist = new ArrayList<Consume>(); /**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
// 构建Workbook对象, 只读Workbook对象
jxl.write.WritableWorkbook wwb = Workbook.createWorkbook(new File(
"d:/test2.xls"));
// 创建Excel工作表
jxl.write.WritableSheet ws = wwb.createSheet("机动车成本表", 0);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < mservice.findAll("mining", null).size() * 2 + 5; j++) {
jxl.write.WritableFont wf1 = new jxl.write.WritableFont(
WritableFont.TIMES, 18, WritableFont.BOLD, true);
jxl.write.WritableCellFormat wcfF1 = new jxl.write.WritableCellFormat(
wf1);
wcfF1.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF1.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelC = new jxl.write.Label(j, i, "", wcfF1);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelC);
}
}
}
jxl.format.ScriptStyle.getStyle(6);
jxl.write.WritableFont wf1 = new jxl.write.WritableFont(
WritableFont.TIMES, 18, WritableFont.BOLD, true,
UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.RED);
jxl.write.WritableCellFormat wcfF1 = new jxl.write.WritableCellFormat(
wf1);
wcfF1.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF1.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelC = new jxl.write.Label(0, 0, "机动车单车变动成本计算表",
wcfF1);
ws.addCell(labelC);
ws.mergeCells(0, 0, mservice.findAll("mining", null).size() * 2 + 5, 2);
// 表头名称
jxl.write.WritableFont wf2 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF2 = new jxl.write.WritableCellFormat(
wf2);
wcfF2.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF2.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelC03 = new jxl.write.Label(0, 3, "名称", wcfF2);
jxl.write.Label labelC13 = new jxl.write.Label(1, 3, "", wcfF2);
jxl.write.Label labelC04 = new jxl.write.Label(0, 4, "", wcfF2);
jxl.write.Label labelC14 = new jxl.write.Label(1, 4, "", wcfF2);
ws.addCell(labelC03);
ws.addCell(labelC13);
ws.addCell(labelC04);
ws.addCell(labelC14);
ws.mergeCells(0, 3, 1, 4);
// 表头核算内容
jxl.write.WritableFont wf3 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF3 = new jxl.write.WritableCellFormat(
wf3);
wcfF3.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF3.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelC23 = new jxl.write.Label(2, 3, "核算内容", wcfF3);
jxl.write.Label labelC24 = new jxl.write.Label(2, 4, "", wcfF3);
ws.addCell(labelC23);
ws.addCell(labelC24);
ws.mergeCells(2, 3, 2, 4);
// 表头单位
jxl.write.WritableFont wf4 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF4 = new jxl.write.WritableCellFormat(
wf4);
wcfF4.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF4.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelC33 = new jxl.write.Label(3, 3, "单位", wcfF4);
jxl.write.Label labelC34 = new jxl.write.Label(3, 4, "", wcfF4);
ws.addCell(labelC33);
ws.addCell(labelC34);
ws.mergeCells(3, 3, 3, 4);
// 车辆编号输出
mtotallist.clear();
mtotallist = mservice.findAll("mining", null);
for (int i = 0; i < mtotallist.size(); i++) {
jxl.write.WritableFont wf5 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF5 = new jxl.write.WritableCellFormat(
wf5);
wcfF5.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF5.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelCtemp = new jxl.write.Label(2 * (i) + 4, 3,
((Machine) mtotallist.get(i)).getSerialNumber(), wcfF5);
jxl.write.Label labelCtemp2 = new jxl.write.Label(2 * (i) + 5, 3,
"", wcfF5);
jxl.write.Label labelCtemp3 = new jxl.write.Label(2 * (i) + 4, 4,
"月计", wcfF5);
jxl.write.Label labelCtemp4 = new jxl.write.Label(2 * (i) + 5, 4,
"累计", wcfF5);
ws.addCell(labelCtemp);
ws.addCell(labelCtemp2);
ws.addCell(labelCtemp3);
ws.addCell(labelCtemp4);
ws.mergeCells(2 * (i) + 4, 3, 2 * (i) + 5, 3);
}

还一段：// 合计
jxl.write.WritableFont wf6 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF6 = new jxl.write.WritableCellFormat(
wf6);
wcfF6.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF6.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelCtemp = new jxl.write.Label(
2 * (mtotallist.size()) + 4, 3, "合计", wcfF6);
jxl.write.Label labelCtemp2 = new jxl.write.Label(2 * (mtotallist
.size()) + 5, 3, "", wcfF6);
jxl.write.Label labelCtemp3 = new jxl.write.Label(2 * (mtotallist
.size()) + 4, 4, "月计", wcfF6);
jxl.write.Label labelCtemp4 = new jxl.write.Label(2 * (mtotallist
.size()) + 5, 4, "累计", wcfF6);
ws.addCell(labelCtemp);
ws.addCell(labelCtemp2);
ws.addCell(labelCtemp3);
ws.addCell(labelCtemp4);
ws.mergeCells(2 * (mtotallist.size()) + 4, 3,
2 * (mtotallist.size()) + 5, 3);
// 耗材燃油
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 5; j++) {
jxl.write.WritableFont wf7 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF7 = new jxl.write.WritableCellFormat(
wf7);
wcfF7.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF7.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelCtemp1 = new jxl.write.Label(i, 5 + j, "",
wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemp1);
}
}
}
jxl.write.WritableFont wf7 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF7 = new jxl.write.WritableCellFormat(
wf7);
wcfF7.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF7.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelCtemp1 = new jxl.write.Label(0, 5, "燃油", wcfF7);
ws.addCell(labelCtemp1);
ws.mergeCells(0, 5, 1, 9);
jxl.write.WritableFont wf8 = new jxl.write.WritableFont(
WritableFont.TIMES, 10, WritableFont.NO_BOLD, false);
jxl.write.WritableCellFormat wcfF8 = new jxl.write.WritableCellFormat(
wf8);
wcfF8.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
wcfF8.setAlignment(jxl.format.Alignment.CENTRE);
jxl.write.Label labelCtemp25 = new jxl.write.Label(2, 5, "数量", wcfF8);
ws.addCell(labelCtemp25);
jxl.write.Label labelCtemp35 = new jxl.write.Label(3, 5, "吨", wcfF8);
ws.addCell(labelCtemp35);
jxl.write.Label labelCtemp26 = new jxl.write.Label(2, 6, "金额", wcfF8);
ws.addCell(labelCtemp26);
jxl.write.Label labelCtemp36 = new jxl.write.Label(3, 6, "元", wcfF8);
ws.addCell(labelCtemp36);
jxl.write.Label labelCtemp27 = new jxl.write.Label(2, 7, "计划单耗", wcfF8);
ws.addCell(labelCtemp27);
jxl.write.Label labelCtemp37 = new jxl.write.Label(3, 7, "公升/百公里",
wcfF8);
ws.addCell(labelCtemp37);
jxl.write.Label labelCtemp28 = new jxl.write.Label(2, 8, "百公里耗油", wcfF8);
ws.addCell(labelCtemp28);
jxl.write.Label labelCtemp38 = new jxl.write.Label(3, 8, "公升/百公里",
wcfF8);
ws.addCell(labelCtemp38);
jxl.write.Label labelCtemp29 = new jxl.write.Label(2, 9, "万米单耗", wcfF8);
ws.addCell(labelCtemp29);
jxl.write.Label labelCtemp39 = new jxl.write.Label(3, 9, "公升/百公里",
wcfF8);
ws.addCell(labelCtemp39); // 轮胎
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 5; j++) {
jxl.write.Label labelCtemplt = new jxl.write.Label(i, 10 + j,
"", wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemplt);
}
}
}
jxl.write.Label labelClt = new jxl.write.Label(0, 10, "轮胎", wcfF7);
ws.addCell(labelClt);
ws.mergeCells(0, 10, 1, 14);
jxl.write.Label labelCtemp210 = new jxl.write.Label(2, 10, "数量", wcfF8);
ws.addCell(labelCtemp210);
jxl.write.Label labelCtemp310 = new jxl.write.Label(3, 10, "条", wcfF8);
ws.addCell(labelCtemp310);
jxl.write.Label labelCtemp211 = new jxl.write.Label(2, 11, "金额", wcfF8);
ws.addCell(labelCtemp211);
jxl.write.Label labelCtemp311 = new jxl.write.Label(3, 11, "元", wcfF8);
ws.addCell(labelCtemp311);
jxl.write.Label labelCtemp212 = new jxl.write.Label(2, 12, "计划单耗",
wcfF8);
ws.addCell(labelCtemp212);
jxl.write.Label labelCtemp312 = new jxl.write.Label(3, 12, "条/百公里",
wcfF8);
ws.addCell(labelCtemp312);
jxl.write.Label labelCtemp213 = new jxl.write.Label(2, 13, "百公里消耗",
wcfF8);
ws.addCell(labelCtemp213);
jxl.write.Label labelCtemp313 = new jxl.write.Label(3, 13, "条/百公里",
wcfF8);
ws.addCell(labelCtemp313);
jxl.write.Label labelCtemp214 = new jxl.write.Label(2, 14, "万米单耗",
wcfF8);
ws.addCell(labelCtemp214);
jxl.write.Label labelCtemp314 = new jxl.write.Label(3, 14, "条/百公里",
wcfF8);
ws.addCell(labelCtemp314); // 电瓶
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 5; j++) {
jxl.write.Label labelCtemplt = new jxl.write.Label(i, 15 + j,
"", wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemplt);
}
}
}
jxl.write.Label labelCdp = new jxl.write.Label(0, 15, "电瓶", wcfF7);
ws.addCell(labelCdp);
ws.mergeCells(0, 15, 1, 19);
jxl.write.Label labelCtemp215 = new jxl.write.Label(2, 15, "数量", wcfF8);
ws.addCell(labelCtemp215);
jxl.write.Label labelCtemp315 = new jxl.write.Label(3, 15, "条", wcfF8);
ws.addCell(labelCtemp315);
jxl.write.Label labelCtemp216 = new jxl.write.Label(2, 16, "金额", wcfF8);
ws.addCell(labelCtemp216);
jxl.write.Label labelCtemp316 = new jxl.write.Label(3, 16, "元", wcfF8);
ws.addCell(labelCtemp316);
jxl.write.Label labelCtemp217 = new jxl.write.Label(2, 17, "计划单耗",
wcfF8);
ws.addCell(labelCtemp217);
jxl.write.Label labelCtemp317 = new jxl.write.Label(3, 17, "条/百公里",
wcfF8);
ws.addCell(labelCtemp317);
jxl.write.Label labelCtemp218 = new jxl.write.Label(2, 18, "百公里消耗",
wcfF8);
ws.addCell(labelCtemp218);
jxl.write.Label labelCtemp318 = new jxl.write.Label(3, 18, "条/百公里",
wcfF8);
ws.addCell(labelCtemp318);
jxl.write.Label labelCtemp219 = new jxl.write.Label(2, 19, "万米单耗",
wcfF8);
ws.addCell(labelCtemp219);
jxl.write.Label labelCtemp319 = new jxl.write.Label(3, 19, "条/百公里",
wcfF8);
ws.addCell(labelCtemp319);

最后一部分：// 维修费
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 5; j++) {
jxl.write.Label labelCtemplt = new jxl.write.Label(i, 20 + j,
"", wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemplt);
}
}
}
jxl.write.Label labelCfwx = new jxl.write.Label(0, 20, "维修费", wcfF7);
ws.addCell(labelCfwx);
ws.mergeCells(0, 20, 1, 23);
jxl.write.Label labelCtemp220 = new jxl.write.Label(2, 20, "金额", wcfF8);
ws.addCell(labelCtemp220);
jxl.write.Label labelCtemp320 = new jxl.write.Label(3, 20, "元", wcfF8);
ws.addCell(labelCtemp320);
jxl.write.Label labelCtemp221 = new jxl.write.Label(2, 21, "计划单耗",
wcfF8);
ws.addCell(labelCtemp221);
jxl.write.Label labelCtemp321 = new jxl.write.Label(3, 21, "元/百公里",
wcfF8);
ws.addCell(labelCtemp321);
jxl.write.Label labelCtemp222 = new jxl.write.Label(2, 22, "百公里消耗",
wcfF8);
ws.addCell(labelCtemp222);
jxl.write.Label labelCtemp322 = new jxl.write.Label(3, 22, "元/百公里",
wcfF8);
ws.addCell(labelCtemp322);
jxl.write.Label labelCtemp223 = new jxl.write.Label(2, 23, "万米单耗",
wcfF8);
ws.addCell(labelCtemp223);
jxl.write.Label labelCtemp323 = new jxl.write.Label(3, 23, "元/百公里",
wcfF8);
ws.addCell(labelCtemp323); // 其他材料
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 5; j++) {
jxl.write.Label labelCtemplt = new jxl.write.Label(i, 24 + j,
"", wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemplt);
}
}
}
jxl.write.Label labelCfqt = new jxl.write.Label(0, 24, "其他材料", wcfF7);
ws.addCell(labelCfqt);
ws.mergeCells(0, 24, 1, 27);
jxl.write.Label labelCtemp224 = new jxl.write.Label(2, 24, "金额", wcfF8);
ws.addCell(labelCtemp224);
jxl.write.Label labelCtemp324 = new jxl.write.Label(3, 24, "元", wcfF8);
ws.addCell(labelCtemp324);
jxl.write.Label labelCtemp225 = new jxl.write.Label(2, 25, "计划单耗",
wcfF8);
ws.addCell(labelCtemp225);
jxl.write.Label labelCtemp325 = new jxl.write.Label(3, 25, "元/百公里",
wcfF8);
ws.addCell(labelCtemp325);
jxl.write.Label labelCtemp226 = new jxl.write.Label(2, 26, "百公里消耗",
wcfF8);
ws.addCell(labelCtemp226);
jxl.write.Label labelCtemp326 = new jxl.write.Label(3, 26, "元/百公里",
wcfF8);
ws.addCell(labelCtemp326);
jxl.write.Label labelCtemp227 = new jxl.write.Label(2, 27, "万米单耗",
wcfF8);
ws.addCell(labelCtemp227);
jxl.write.Label labelCtemp327 = new jxl.write.Label(3, 27, "元/百公里",
wcfF8);
ws.addCell(labelCtemp327);
// 合计
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
jxl.write.Label labelCtemplt = new jxl.write.Label(i, 28 + j,
"", wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemplt);
}
}
}
jxl.write.Label labelCfhj = new jxl.write.Label(0, 28, "合计", wcfF7);
ws.addCell(labelCfhj);
ws.mergeCells(0, 28, 1, 29);
jxl.write.Label labelCtemp228 = new jxl.write.Label(2, 28, "金额", wcfF8);
ws.addCell(labelCtemp228);
jxl.write.Label labelCtemp328 = new jxl.write.Label(3, 28, "元", wcfF8);
ws.addCell(labelCtemp328);
jxl.write.Label labelCtemp229 = new jxl.write.Label(2, 29, "延米单耗",
wcfF8);
ws.addCell(labelCtemp229);
jxl.write.Label labelCtemp329 = new jxl.write.Label(3, 29, "元/百公里",
wcfF8);
ws.addCell(labelCtemp329);
// 公里数
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 1; j++) {
jxl.write.Label labelCtemplt = new jxl.write.Label(i, 30 + j,
"", wcfF7);
if (i == 0 && j == 0) {
} else {
ws.addCell(labelCtemplt);
}
}
}
jxl.write.Label labelCfgls = new jxl.write.Label(0, 30, "公里数", wcfF7);
ws.addCell(labelCfgls);
ws.mergeCells(0, 30, 2, 30);
jxl.write.Label labelCtemp330 = new jxl.write.Label(3, 30, "公里", wcfF8);
ws.addCell(labelCtemp330); for (int i = 0; i < mtotallist.size(); i++) {
Machine m = (Machine) mtotallist.get(i);
Consumables cyp = clservice.findByName("mining", "柴油", "2009","10");
System.out.println("cyp.price"+cyp.getPrice());
Consumables qyp = clservice.findByName("mining", "汽油", "2009","10");
System.out.println("qyp.price"+qyp.getPrice());
// Consumables cstires = clservice.findByName("mining", "轮胎", "2009", "10");
// Consumables csbattery = clservice.findByName("mining", "电瓶","2009", "10");
double ryou = 0;
double ryouamount=0;
String ru = "";
double cyou = vservice.sum("mining", m.getSerialNumber(),new java.sql.Date(new java.util.Date().getTime()), "cyou");
double qyou = vservice.sum("mining", m.getSerialNumber(),new java.sql.Date(new java.util.Date().getTime()), "qyou");
if (cyou > 0) {
ryou = cyou;
System.out.println("cyou= "+cyou+" price="+cyp.getPrice());
ryouamount=cyp.getPrice();
ru = "柴油";
} else {
ryou = qyou;
System.out.println("qyou= "+qyou+" price="+qyp.getPrice());
ryouamount=qyp.getPrice();
ru = "汽油";
}
double repair = vservice.sum("mining", m.getSerialNumber(), new java.sql.Date(new java.util.Date().getTime()), "repair");
double tires = vservice.sum("mining", m.getSerialNumber(), new java.sql.Date(new java.util.Date().getTime()), "tires");
double battery = vservice.sum("mining", m.getSerialNumber(),new java.sql.Date(new java.util.Date().getTime()), "battery");
double other = vservice.sum("mining", m.getSerialNumber(), new java.sql.Date(new java.util.Date().getTime()), "other");
jxl.write.Number labelN11 = new jxl.write.Number(4 + 2 * i, 5, ryou);
jxl.write.Number labelN12 = new jxl.write.Number(5 + 2 * i, 5, -1);
jxl.write.Number labelN21 = new jxl.write.Number(4 + 2 * i, 6, ryouamount);
jxl.write.Number labelN22 = new jxl.write.Number(5 + 2 * i, 6,-1);
jxl.write.Number labelN31 = new jxl.write.Number(4 + 2 * i, 7,paservice.findByname("mining", ru, "2009", m.getSerialNumber()));
jxl.write.Number labelN32 = new jxl.write.Number(5 + 2 * i, 7,-1);
jxl.write.Number labelN41 = new jxl.write.Number(4 + 2 * i, 8, ryou / otservice.sumBymnumber("mining", m.getSerialNumber(), m.getType(), "2009", "10") / 100);
jxl.write.Number labelN42 = new jxl.write.Number(5 + 2 * i, 8,-1);
jxl.write.Number labelN51 = new jxl.write.Number(4 + 2 * i, 9, ryou/ otservice.sumBymnumber("mining", m.getSerialNumber(), m.getType(), "2009", "10") / 10);
jxl.write.Number labelN52 = new jxl.write.Number(5 + 2 * i, 9,-1);
ws.addCell(labelN11);
ws.addCell(labelN12);
ws.addCell(labelN21);
ws.addCell(labelN22);
ws.addCell(labelN31);
ws.addCell(labelN32);
ws.addCell(labelN41);
ws.addCell(labelN42);
ws.addCell(labelN51);
ws.addCell(labelN52);
}
jxl.write.WritableSheet sheet = wwb.getSheet(0);
sheet.setColumnView(0, 3);
sheet.setColumnView(1, 2);
sheet.setColumnView(2, 10);
sheet.setColumnView(3, 10);
// 写入Exel工作表
wwb.write();
// 关闭Excel工作薄对象
wwb.close(); }}

贴这么多代码有意义吗？
Consumables cyp = clservice.findByName("mining", "柴油", "2009","10");只要贴Consumables 类
和clservice类包含findByName方法即可

Consumables类：
package com.hxsmelt.model.entity;import java.io.Serializable;public class Consumables implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private long id;
private String consumablesModel;
private String consumablesName;
private String unit;
private double price;
private String year;
private String month;
private String department;
public String getYear() {
return year;
}
public void setYear(String year) {
this.year = year;
}
public Consumables() {
super();
// TODO Auto-generated constructor stub
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (id ^ (id >>> 32));
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Consumables other = (Consumables) obj;
if (id != other.id)
return false;
return true;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getConsumablesModel() {
return consumablesModel;
}
public void setConsumablesModel(String consumablesModel) {
this.consumablesModel = consumablesModel;
}
public String getConsumablesName() {
return consumablesName;
}
public void setConsumablesName(String consumablesName) {
this.consumablesName = consumablesName;
}
public String getUnit() {
return unit;
}
public void setUnit(String unit) {
this.unit = unit;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
public String getMonth() {
return month;
}
public void setMonth(String month) {
this.month = month;
}
public String getDepartment() {
return department;
}
public void setDepartment(String department) {
this.department = department;
}
}findByName方法:private Consumables u = new Consumables();
public Consumables findByName(String dep, String cname,String year,String month) {
// TODO Auto-generated method stub
Session session = HbnUtil.getSession();
Connection connection = session.connection();
Statement stmt = null;
ResultSet rs = null;
// System.out.println("dep="+dep+" cname="+cname+" year="+year+" month="+month);
String sql = "select * from Consumables_t where z_dep='"+dep+"' and z_cname='"+cname+"' and z_year='"+year+"' and z_month='"+month+"' order by z_id desc";
try {
stmt = connection.createStatement();
rs = stmt.executeQuery(sql);
while(rs.next()){
u.setId(rs.getLong(1));
u.setConsumablesModel(rs.getString(2));
u.setConsumablesName(rs.getString(3));
u.setYear(rs.getString(4));
u.setMonth(rs.getString(5));
u.setDepartment(rs.getString(6));
u.setPrice(rs.getDouble(7));
u.setUnit(rs.getString(8));
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
HbnUtil.release(rs, stmt, connection, session);
}
return u;}

问题出在findName方法，你的返回值u,注意，这个u是在方法外new()的，连续两回调用findName方法返回的是一个Consumables 对像，只是修改了属性，
应该把u定义在方法内，

你没new()?
public Consumables findByName(String dep, String cname,String year,String month) {
        // TODO Auto-generated method stub
        Consumables u = new Consumables();
        Session session = HbnUtil.getSession();
        Connection connection = session.connection();        Statement stmt = null;
        ResultSet rs = null;
//        System.out.println("dep="+dep+" cname="+cname+" year="+year+" month="+month);
        String sql = "select * from Consumables_t where z_dep='"+dep+"' and z_cname='"+cname+"' and z_year='"+year+"' and z_month='"+month+"' order by z_id desc";
        try {
            stmt = connection.createStatement();
            rs = stmt.executeQuery(sql);
            while(rs.next()){
                u.setId(rs.getLong(1));
                u.setConsumablesModel(rs.getString(2));
                u.setConsumablesName(rs.getString(3));
                u.setYear(rs.getString(4));
                u.setMonth(rs.getString(5));
                u.setDepartment(rs.getString(6));
                u.setPrice(rs.getDouble(7));
                u.setUnit(rs.getString(8));
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            HbnUtil.release(rs, stmt, connection, session);
        }
        return u;}

public Consumables findByName(String dep, String cname,String year,String month) {
        // TODO Auto-generated method stub
        Consumables u = new Consumables();//这样会有空指针？不可能吧
        Session session = HbnUtil.getSession();
        Connection connection = session.connection();        Statement stmt = null;
        ResultSet rs = null;
//        System.out.println("dep="+dep+" cname="+cname+" year="+year+" month="+month);
        String sql = "select * from Consumables_t where z_dep='"+dep+"' and z_cname='"+cname+"' and z_year='"+year+"' and z_month='"+month+"' order by z_id desc";
        try {
            stmt = connection.createStatement();
            rs = stmt.executeQuery(sql);
            while(rs.next()){
                u.setId(rs.getLong(1));
                u.setConsumablesModel(rs.getString(2));
                u.setConsumablesName(rs.getString(3));
                u.setYear(rs.getString(4));
                u.setMonth(rs.getString(5));
                u.setDepartment(rs.getString(6));
                u.setPrice(rs.getDouble(7));
                u.setUnit(rs.getString(8));
            }
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            HbnUtil.release(rs, stmt, connection, session);
        }
        return u;}

Consumables u = new Consumables() 是在 clservice 这个类里声明的，这个类只有一个实例，所以会出现上面的情况。

使用局部变量mrservice把问题解决了，谢谢大家

调试易

同一段代码不同输出结果

解决方案 »