`
文章列表
来源: http://blog.163.com/yvette1114@126/blog/static/134178214201121495259172/ 设计了两个表worker和email。一个worker对应多个email。 【问题】在jsp显示worker的emails时,写了以下: <td>        <c:forEach items="emaillist" var="item">        <c:out value="${item.emailaddress}"></c ...

树形菜单

    博客分类:
  • java
public interface INode<T>{ //返回节点ID public String getNodeId(); //返回父节点ID public String getParentId(); //返回节点名称 public String getTitle(); //往节点中添加子节点 public void addChild(INode<T> child); //往节点中批量添加子节点 public void addChildren(Collection< ...
文件是中文名字的时候,不能解析直接弹出错误。 将文件名换成英文。
先将其注掉。@Controller org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB-INF/spring-mvc.xml]; nested exception is org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean ...
解决:等号后面没有相应的名字 String hql= "from EnrChange t where t.enrStudentInfo.fid=:fid and t.fisRemove="; Map<String,Object> filter = new HashMap<String,Object>(); filter.put("fid", fid); filter.put("fisRemove", BigDecimal.valueOf(0)); 异常状态: line 1:99: une ...

默认会关联ID

@ManyToOne @JoinColumn(name="FPRJ_CODE") public Project getProject() { return this.project; } public void setProject(Project project) { this.project = project; }
解决:action里的@Resource(name = "excelOperator")找不到excelOperator Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'exampleAction': Injection of resource dependencies failed; nested exception is org.springframework.beans.facto ...
org.hibernate.QueryException: could not resolve property: sysMajor.fname of: com.ambow.lmsx.enrollment.entity.EnrStudentInfo at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:81) at org.hibernate.persister.entity.AbstractPropertyMapping.t ...
来源:http://michaelfly.iteye.com/blog/772514 今天在做一个功能的时候 遇到了。一个Could not resolve property 的问题。 配置文件如下: Java代码 <many-to-one name="user" class="Users" column="StudentExam_user_fid" cascade="all" ></many-to-one> <many-to-one name=& ...

n+1问题

http://hi.baidu.com/victorlin23/blog/item/8b7a3382670cd9b16d811963.html Find()方法下FetchType.LAZY、FetchType.EAGER、@Fetch(FetchMode.JOIN)的区别2010-08-27 16:13结论:1.使用 例如:@ManyToOne(fetch = FetchType.LAZY)将会产生N+1的问题。 2.使用:@ManyToOne(fetch = FetchType.EAGER)将会使用join查询,推断hibernate对eaer进行了优化并不会产生N+ ...
<%@ taglib prefix="format" uri="http://java.sun.com/jsp/jstl/fmt" %> <format:formatDate value="${enrChange.fchaDate}" pattern="yyyy年MM月dd日"/>

@InitBinder 用法

    博客分类:
  • java
来源:[url] http://yeak2001.iteye.com/blog/465325 [/url] @Controller public class MyFormController { @InitBinder public void initBinder(WebDataBinder binder) { SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); dateFormat.setL ...
package org.ks4j.orm.hibernate; import java.util.List; import java.util.Map; import org.ks4j.orm.Compositor; import org.ks4j.orm.Filtration; import org.ks4j.orm.PageData; public interface IBaseService<T> { /** * 新增对象. */ public void save(T entity); /** * 修改对象. ...
package org.ks4j.orm.hibernate; import java.util.List; import java.util.Map; import javax.annotation.Resource; import javax.persistence.MappedSuperclass; import org.hibernate.Criteria; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.SessionFactory; impo ...
package org.ks4j.utils; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.hibernate.Criteria; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.criterion.CriteriaSpecification; import org.hibernate.criterion.Criterion; impo ...
Global site tag (gtag.js) - Google Analytics