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一 验证不能为空的操作：
在form中添加代码@NotEmpty(field="商品类型", message="{errors.required}")
在controller中对应不能为空的位置添加
if(results.hasErrors())
return "manager/commodityType/addCommodityType";
3.不能为空的格式：<td style="background-color: #f9f9f9;">商品名称</td>
<td><form:input path="commodityTypeName" cssClass="form-control" cssErrorClass="form-control error" value="${commodityTypeForm.commodityTypeName}"/></td>
二 添加商品类型模块
点击商品类型管理的按钮进入一个列表界面，显示数据库中已经存在的商品类型列表，本模块的功能有编辑，删除，追加和取消。
点击编辑按钮进入对商品类型的编辑，输入内容为空或添加商品类型与已有类型相同时提示错误信息。
点击追加按钮进入追加页面添加时，同样，输入内容为空或添加商品类型与已有类型相同时提示错误信息。
后台建立addCommodityType.jsp
commodityTypeList.jsp
editCommodityType.jsp这三个页面，添加ID，商品名称和备注：commodity_type_id,commodity_type_name,commodity_type_note
在CommodityTypeForm中的重要代码:
为需要进行vailudation的属性添加相应的标签比如这里的Name需要设置为不能为空或者不能与数据库中已有的数据重复：
public class CommodityTypeForm {
private String commodityTypeId;
//验证不能为空
@NotEmpty(field="商品类型", message="{errors.required}")
private String commodityTypeName;
private String commodityTypeNote;
private String updateTime;
private String updateUser;
}
3.在CommodityTypeSqlMap中的重要代码:数据库中所要进行的一些操作，如查询，插入，更新数据的语句
<sqlMap namespace="Commodity_type"> <select id="selectCommodityTypeList" parameterClass="cn.agriculture.web.form.CommodityTypeForm" resultClass="cn.agriculture.web.form.CommodityTypeForm"> SELECT commodity_type.commodity_type_id as commodityTypeId, commodity_type.commodity_type_name as commodityTypeName, commodity_type.commodity_type_note as commodityTypeNote FROM commodity_type </select> <select id="selectCommodityType" parameterClass="cn.agriculture.web.form.CommodityTypeForm" resultClass="cn.agriculture.web.form.CommodityTypeForm"> SELECT commodity_type_id as commodityTypeId, commodity_type_name as commodityTypeName, commodity_type_note as commodityTypeNote FROM commodity_type WHERE commodity_type_id = #commodityTypeId# </select> <select id="getSeq" resultClass="java.lang.Integer"> SELECT _nextval(‘commodityTypeId‘) </select> <insert id="addCommodityType" parameterClass="cn.agriculture.web.form.CommodityTypeForm"> INSERT INTO commodity_type(commodity_type_id, commodity_type_name,commodity_type_note) VALUES(#commodityTypeId#, #commodityTypeName#,#commodityTypeNote#) </insert> <update id="editCommodityType" parameterClass="cn.agriculture.web.form.CommodityTypeForm"> UPDATE commodity_type SET commodity_type_name = #commodityTypeName#, commodity_type_note = #commodityTypeNote# WHERE commodity_type_id = #commodityTypeId# </update> <delete id="delCommodityType" parameterClass="cn.agriculture.web.form.CommodityTypeForm"> DELETE FROM commodity_type WHERE commodity_type_id = #commodityTypeId# </delete> </sqlMap>
4.在CommodityTypeService中的重要代码:调用存放数据库中数据的一些方法
@Service
public class CommodityTypeService {
@Autowired
QueryDAO queryDao;
@Autowired
UpdateDAO updateDao;
public List<CommodityTypeForm> searchCommodityTypeList() {
List<CommodityTypeForm> result = queryDao.executeForObjectList("Commodity_type.selectCommodityTypeList", null);
return result;
}
public CommodityTypeForm searchCommodityType(CommodityTypeForm frm) {
CommodityTypeForm result = queryDao.executeForObject("Commodity_type.selectCommodityType", frm, CommodityTypeForm.class);
return result;
}
public boolean addCommodityType(CommodityTypeForm frm) {
Integer sequee = queryDao.executeForObject("Commodity_type.getSeq", null, Integer.class);
String commodityTypeId = frm.getUpdateTime().substring(0, 4) + String.format("%011d", sequee);
frm.setCommodityTypeId(commodityTypeId);
int result = updateDao.execute("Commodity_type.addCommodityType", frm);
if (result == 1) {
return true;
}
return false;
}
public CommodityTypeForm getEditCommodityType(CommodityTypeForm frm) {
return queryDao.executeForObject("Commodity_type.selectEditCommodityType", frm,CommodityTypeForm.class);
}
public boolean editCommodityType(CommodityTypeForm frm) {
int result = updateDao.execute("Commodity_type.editCommodityType", frm);
if (result == 1) {
return true;
}
return false;
}
public boolean delCommodityType(CommodityTypeForm frm) {
int result = updateDao.execute("Commodity_type.delCommodityType", frm);
if (result == 1) {
return true;
}
return false;
}
}
5.在CommodityTypeControllor中的重要代码:主要实现各页面的跳转和一些功能
@Slf4j
@Controller("CommodityTypeController")
@RequestMapping("/")
public class CommodityTypeController {
@Autowired
CommodityTypeService commodityTypeService;
@Autowired
ItemListComponent itemListComponent;
@Autowired
private Environment env;
@RequestMapping(value = "initCommodityType", method = RequestMethod.GET)
public String initCommodityType(Model model) {
log.info("商品类型初始化");
model.addAttribute("list",
commodityTypeService.searchCommodityTypeList());
return "manager/commodityType/commodityTypeList";
}
@RequestMapping(value = "initAddCommodityType", method = RequestMethod.GET)
public String initAddCommodityType(Model model) {
log.info("追加商品类型初始化");
CommodityTypeForm commodityTypeForm = new CommodityTypeForm();
model.addAttribute("commodityTypeForm", commodityTypeForm);
return "manager/commodityType/addCommodityType";
}
@RequestMapping(value = "addCommodityType", method = RequestMethod.POST)
public String executeAddCommodityType(
Model model,
HttpSession session,
@Valid @ModelAttribute("commodityTypeForm") CommodityTypeForm commodityTypeForm,
BindingResult results) throws SQLException, IOException {
//判断文本框内容不能为空
if(results.hasErrors())
return "manager/commodityType/addCommodityType";
log.info("添加商品类型信息");
UVO uvo = (UVO) session.getAttribute("UVO");
commodityTypeForm.setUpdateUser(uvo.getUserName());
Date date = new Date();
SimpleDateFormat dateformat = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
commodityTypeForm.setUpdateTime(dateformat.format(date));
boolean result = commodityTypeService
.addCommodityType(commodityTypeForm);
if (!result) {
throw new SQLException("商品类型信息添加失败！");
}
model.addAttribute("list",
commodityTypeService.searchCommodityTypeList());
return "manager/commodityType/commodityTypeList";
}
@RequestMapping(value = "initEditCommodityType", method = RequestMethod.GET)
public String initEditCommodityType(Model model,
CommodityTypeForm commodityTypeForm) {
log.info("修改商品类型信息初始化");
CommodityTypeForm result = commodityTypeService
.searchCommodityType(commodityTypeForm);
model.addAttribute("commodityTypeForm", result);
return "manager/commodityType/editCommodityType";
}
@RequestMapping(value = "editCommodityType", method = RequestMethod.POST)
public String executeEditCommodityType(
Model model,
HttpSession session,
@Valid @ModelAttribute("commodityTypeForm") CommodityTypeForm commodityTypeForm,
BindingResult results) throws SQLException, IOException {
//判断文本框内容不能为空
if(results.hasErrors())
return "manager/commodityType/editCommodityType";
log.info("修改商品类型信息");
//uvo语句是判断登陆时间，登陆超时将重新登陆
// UVO uvo = (UVO)session.getAttribute("UVO");
// commodityTypeForm.setUpdateUser(uvo.getUserName());
Date date = new Date();
SimpleDateFormat dateformat = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
commodityTypeForm.setUpdateTime(dateformat.format(date));
boolean result = commodityTypeService
.editCommodityType(commodityTypeForm);
if (!result) {
throw new SQLException("商品类型信息更新失败！");
}
model.addAttribute("list",
commodityTypeService.searchCommodityTypeList());
return "manager/commodityType/commodityTypeList";
}
@RequestMapping(value = "delCommodityType", method = RequestMethod.GET)
public String executeDelCommodityType(Model model,
CommodityTypeForm commodityTypeForm) throws SQLException {
log.info("删除商品类型信息");
boolean result = commodityTypeService
.delCommodityType(commodityTypeForm);
if (!result) {
throw new SQLException("商品类型信息删除失败！");
}
model.addAttribute("list",
commodityTypeService.searchCommodityTypeList());
return "manager/commodityType/commodityTypeList";
}
}
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原文地址：http://my.oschina.net/u/2411770/blog/487573
