前面的模板设计相对简单一点，第三个模板比较复杂，这里也记录下来。
因为小票下方会出现不同的值，就会导致这张小票的长度有所变化，如图所示：
对比上面两张图，红色框里的值是可变的，因此小票的长度就会变化。这里就设计到了子报表。（当然也可以不用子报表设计）。
1.子报表
下面介绍下子报表的设计：
这是新建的子报表：
当然要与子报表关联起来，如下图：
并且也需要将放入到项目中去。
相关代码也贴出来：
/**
* 打印
* 模板三：网络车小票。
* @return
*/
@Override
public List<Map<String, Object>> query(String ids,String trans_doc_id,String net_weight) {
//通过接口地址取值，urlOld：历史数据， urlNew：今日数据
String urlOld = "http://api.yundasys.com:8089/shipments/queryPrintInfo?shipId="+trans_doc_id+"&type=zr";
String urlNew = "http://api.yundasys.com:8089/shipments/queryPrintInfo?shipId="+trans_doc_id+"&type=jr";
/*
* 获得的历史数据格式如下：
68800247191 绍兴YD-杭州ZZ 1
68800247191 本车规定发车时间 2017-12-04 23:30 2
68800247191 3
68800247191 A 昨天总重量89.96吨 装载率104.31%= 4
68800247191 重量 装载率 车牌 实际发车时间 5
68800247191 5.40吨 87.7% 沪D09688( 厢 0米/ 56立方) 03日20:17 6
68800247191 4.68吨 76.0% 沪BS3500( 厢 0米/ 56立方) 03日20:35 7
…………
只需要中间的即可。
* */
//去除前面的发车凭证，得到数组
String[] history = getData(urlOld).split(trans_doc_id);
String hData = "";
String historyData = "";
//循环遍历
for (String s : history) {
//截取后面的数字。得到中间的字符串
String h = " " + s;
hData = h.substring(0,h.length() - 2);
//最后拼接，得到所有的历史数据，并且换行
historyData = historyData + hData.trim() + "\n";
}
/*
* 获得的今日数据格式如下：
10月31日 B 你的车牌浙A7S282(合厢9.6米/56立方) 6160
最终要的格式：
B 你的车牌浙A7S282(合厢9.6米/56立方)
10月31日货物总重量 吨 装载率 %
* */
//获取今日数据，并切割，截取后取得中间的字符串
String todayData = getData(urlNew).split("\\)")[0].substring(6)+")";
//切割获取日期
String[] split = getData(urlNew).split("B");
//获取装载重量
//float s1 = Float.parseFloat(getData(urlNew).split("米")[0].split("厢")[1]);
float s1 = Float.parseFloat(getData(urlNew).split("\\)")[1]);
float p = 0;
//当返回的【装载重量】=0时，则【装载率】=0；如果返回的【装载重量】>0时,则【装载率】=（页面的【净重KG】）/（返回数据的【装载重量】）。
if(s1 == 0){
p = 0;
}else{
p = Float.parseFloat(net_weight)/s1;
}
//最终拼接成最后的格式
String todayData1 = split[0].trim()+"货物总重量 "+ s1/1000+" 吨 装载率"+ new DecimalFormat("0.00").format(p)+"%";
//System.out.println(historyData+" *****"+todayData);
//定义一个list，封装结果集
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
// 将传过来的id字符串转成id数组
String[] idArr = ids.split(",");
for (String serial_no : idArr) {
// 定义一个paraMap，封装查询参数
Map<String, Object> paraMap = new HashMap<String, Object>();
paraMap.put("serial_no", serial_no);
// 定义一个data，封装结果
Map<String, Object> data = new HashMap<String, Object>();
data.put("history", historyData);
data.put("today", todayData.trim());
data.put("today1", todayData1);
// 查询信息
Map<String, Object> map = dataDao.query(paraMap);
if (map != null) {
Set<Entry<String, Object>> entrySet = map.entrySet();
for (Entry<String, Object> entry : entrySet) {
data.put(entry.getKey(), entry.getValue());
}
}
//查询是否已回皮
String tare_status = dataDao.tareStatus(paraMap);
data.put("tare_status", tare_status);
list.add(data);
}
return list;
}
//日志
private static Logger logger=Logger.getLogger(WB_busi_gross_weightServiceImpl.class);
/**
* 获取接口数据并返回json格式字符串
* @param url 接口路径
* @return
*/
public String getData(String url){
StringBuilder s = new StringBuilder();
try {
URL urlObject = new URL(url);
URLConnection uc = urlObject.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(uc.getInputStream(),"utf-8"));
String inputLine = null;
while ( (inputLine = in.readLine()) != null) {
s.append(inputLine);
}
in.close();
} catch (Exception e) {
logger.error(e);
//logger.error("网络无法连接，取不到接口数据！"+ e.getMessage());
logger.error("网络无法连接，取不到接口数据！");
//throw new CIPServiceException(CIPErrorCode.ERROR_RECORD_NOT_EXISTS);
}
return s.toString();
}
这里涉及到了调用接口获取值。
报表的值应用list接收，如下：
@Override
public Map<String, Object> query(Map<String, Object> paraMap) {
Map<String, Object> map = null;
String sql = "SELECT case a.in_out_flag when 1 then '出站' when 2 then '进站' else '即装即卸' end in_out_flag,b.com_name weight_site_name,DATE_FORMAT(a.weight_time,'%Y-%m-%d %H:%i:%s') weight_time,"
+ " a.serial_no serial_no,b.com_name start_site_name,concat('(', a.start_site, ')') start_site,a.car_id car_id,a.trans_doc_id trans_doc_id,concat(a.gross_weight,'Kg') gross_weight,concat(ifnull(d.trailer_tare,0),'Kg') gc_pz,concat(a.net_weight,'Kg') net_weight,concat(a.weight_fee,'元') weight_fee,ifnull(a.tare_valid_date,0) tare_valid_date,"
+ " ifnull(c.emp_name, a.operator) operator,SYSDATE(),count(t.car_id) tare_wgt_count FROM wb_busi_gross_weight a LEFT JOIN wb_base_com b ON a.weight_site = b.com_bm LEFT JOIN wb_base_emp c ON a.operator = c.emp_id RIGHT JOIN wb_busi_tare_weight t ON a.car_id = t.car_id LEFT JOIN wb_bd_doc d ON a.trans_doc_id = d.trans_doc_id WHERE a.serial_no = ? "
+ " and t.car_id = (select car_id from wb_busi_gross_weight where serial_no = ? ) and t.op_site = (select weight_site from wb_busi_gross_weight where serial_no = ? )";
//Object serial_no = paraMap.get("serial_no");
try {
map = jdbcTemplate.queryForMap(sql, paraMap.get("serial_no"),paraMap.get("serial_no"),paraMap.get("serial_no"));
return map;
} catch (DataAccessException e) {
log.error(e);
return map;
}
}
/**
* 判断逻辑：根据皮重表查询是否该趟任务是否回皮。
* 需满足车牌号，中转站点，create_time从称重时间到下一个9:30之间，以及皮重状态为有效（即valid_flag不等于1）
*/
@Override
public String tareStatus(Map<String, Object> paraMap) {
String result = "";
String sql = "SELECT case when count(t.car_id) > 0 then '该趟已回皮' else '该趟未回皮' end tare_status FROM wb_busi_gross_weight a RIGHT JOIN wb_busi_tare_weight t ON a.car_id = t.car_id WHERE a.serial_no = ? "
+ " and t.car_id = (select car_id from wb_busi_gross_weight where serial_no = ? ) and t.op_site = (select weight_site from wb_busi_gross_weight where serial_no = ? ) "
+ " and t.create_time >= a.weight_time and t.create_time < if(DATE_FORMAT(a.weight_time,'%H:%i:%s') < '09:30:00',str_to_date(concat(DATE_FORMAT(a.weight_time,'%Y-%m-%d'),'09:30:00'),'%Y-%m-%d %H:%i:%s'),str_to_date(concat(date_add(DATE_FORMAT(a.weight_time,'%Y-%m-%d'),interval 1 day),'09:30:00'),'%Y-%m-%d %H:%i:%s')) and t.valid_flag <> 1";
Object[] params = new Object[3];
params[0] = paraMap.get("serial_no");
params[1] = params[0];
params[2] = params[0];
try {
result = jdbcTemplate.queryForObject(sql,String.class,params);
return result;
} catch (Exception e) {
log.error(e);
return result;
}
}
sql语句：
SELECT
//case when count(t.car_id) > 0 then '该趟已回皮' else '该趟未回皮' end tare_status,
case a.in_out_flag when 1 then '出站' when 2 then '进站' else '即装即卸' end in_out_flag,
b.com_name weight_site_name,
DATE_FORMAT(
a.weight_time,
'%Y-%m-%d %H:%i:%s'
) weight_time,
a.serial_no serial_no,
b.com_name start_site_name,
concat('(', a.start_site, ')') start_site,
a.car_id car_id,
a.trans_doc_id trans_doc_id,
concat(a.gross_weight,'Kg') gross_weight,
concat(ifnull(d.trailer_tare,0),'Kg') gc_pz,
concat(a.net_weight,'Kg') net_weight,
concat(a.weight_fee,'元') weight_fee,
ifnull(a.tare_valid_date,0) tare_valid_date,
ifnull(c.emp_name, '') operator,
SYSDATE(),
count(t.car_id) tare_wgt_count
FROM
wb_busi_gross_weight a
LEFT JOIN wb_base_com b ON a.weight_site = b.com_bm
LEFT JOIN wb_base_emp c ON a.operator = c.emp_id
RIGHT JOIN wb_busi_tare_weight t ON a.car_id = t.car_id
LEFT JOIN wb_bd_doc d ON a.trans_doc_id = d.trans_doc_id
WHERE
a.serial_no = '51000117051603161543'
and t.car_id = (select car_id from wb_busi_gross_weight where serial_no = '51000117051603161543')
and t.op_site = (select weight_site from wb_busi_gross_weight where serial_no = '51000117051603161543')
SELECT
case when count(t.car_id) > 0 then '该趟已回皮' else '该趟未回皮' end tare_status
FROM
wb_busi_gross_weight a
left JOIN wb_busi_tare_weight t ON a.car_id = t.car_id
WHERE
a.serial_no = '51000117051603161543'
and t.car_id = (select car_id from wb_busi_gross_weight where serial_no = '51000117051603161543')
and t.op_site = (select weight_site from wb_busi_gross_weight where serial_no = '51000117051603161543')
and t.create_time >= a.weight_time
and t.create_time < if(DATE_FORMAT(a.weight_time,'%H:%i:%s') < '09:30:00',str_to_date(concat(DATE_FORMAT(a.weight_time,'%Y-%m-%d'),'09:30:00'),'%Y-%m-%d %H:%i:%s'),
str_to_date(concat(date_add(DATE_FORMAT(a.weight_time,'%Y-%m-%d'),interval 1 day),'09:30:00'),'%Y-%m-%d %H:%i:%s'))
and t.valid_flag <> 1
至此，就搞定了，如有不当之处，欢迎道友指正！