s2sh框架搭建(辅助工具：MyEclipse)及解决一些遇到的问题

1.新建一个web project

2.首先生成Hibernate Facet

3.Hibernate Facet 安装步骤

4.然后是spring facet安装步骤

5.最后是struts facet 的配置

 6.最后的整体布局如下所示

7.在服务器上运行，发现如下错误：

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener

org.springframework.beans.factory.BeanCreationException: Error creating bean with name transactionManager defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource]

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)

    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)

    ........

 !--新加入 datasource -- 

 bean id="dataSource" 

 property name="driverClassName" value="com.mysql.jdbc.Driver" / 

 property name="url" value="jdbc:mysql://localhost:3306/hjzgg_test?characterEncoding=UTF-8" / 

 property name="username" value="root" / 

 property name="password" value="hjzgg5211314" / 

 /bean 

 bean id="sessionFactory" 

 property name="configLocation"

 value="classpath:hibernate.cfg.xml" 

 /property 

 !--新加入 将dataSource注入到sessionFactory中 -- 

 property name="dataSource" ref="dataSource" /property 

 property name="hibernateProperties" 

 value 

 hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

 hibernate.hbm2ddl.auto=update

 hibernate.show_sql=true

 hibernate.format_sql=false

 hibernate.cache.use_second_level_cache=true

 hibernate.cache.use_query_cache=false

 hibernate.cache.provider_ >


8.新建PersonDao（DAO层），它的实现类PersonDaoImpl，以及 Action类 LoginAction

在applicationContext.xml中添加如下代码：




 bean id="personDao" 

 !-- 采用依赖注入传入SessionFactory的引用 -- 

 property name="sessionFactory" ref="sessionFactory"/ 

 /bean 

 bean id="login" 

 property name="personDao" ref="personDao"/ 

 /bean 

9.POJO 与 hibernate层：新建POJO(普通java类， 对于每一个变量拥有getter 和 setter方法)，新建 映射hibernate持久化类person.cfg.xml文件如下：



 ?xml version="1.0" encoding="UTF-8"? 

 !DOCTYPE hibernate-mapping 

 PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" 

 hibernate-mapping package="com.xunchang" 

 class name="Person" table="home402" 

 !-- 定义持久化类的表示属性 -- 

 id name="personId" column="personId" type="java.lang.Integer" 

 !-- 定义主键生成策略 -- 

 generator / 

 /id 

 property name="person_name" column="person_name" type="java.lang.String"/ 

 property name="person_age" column="person_age" type="java.lang.Integer"/ 

 /class 

 /hibernate-mapping 

然后在applicationContext.xml中的sessionFactory（bean）中加载该映射文件如下：



 bean id="sessionFactory" 

 property name="configLocation"

 value="classpath:hibernate.cfg.xml" 

 /property 

 !--新加入 将dataSource注入到sessionFactory中 -- 

 .......

 ......

 !--通过配置文件的方式获取数据源-- 

 property name="mappingResources" 

 list 

 !-- 以下用来列出所有的PO映射文件 -- 

 value person.cfg.xml /value 

 /list 

 /property 

 /bean 

10.运行服务器，问题又来了，如下：



org.hibernate.HibernateException: span No Session found for current thread /span 

    org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)

    org.hibernate.internal.SessionFactoryImpl span .getCurrentSession(SessionFactoryImpl.java:1041) /span 

    com.xunchang.PersonDaoImpl.getSession(PersonDaoImpl.java:16)

    com.xunchang.PersonDaoImpl.findAllPerson(PersonDaoImpl.java:63)

    com.xunchang.LoginAction.execute(LoginAction.java:20)

    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)


Hibernate4 No Session found for current thread原因：  http://www.yihaomen.com/article/java/466.htm

解决方法：在applicationContext.xml中的sessionFactory 中 property name="hibernateProperties" /property 加入 hibernate.current_session_context_ >




 property name="hibernateProperties" 

 value 

 ......

 hibernate.current_session_context_ >

11.最后一个问题就是hibernate 中文乱码，解决方案如下：



//写一个字符集过滤器

import java.io.IOException;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServlet;

public class SetCharacterEncodingFilter extends HttpServlet implements Filter {

 public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException { 

 request.setCharacterEncoding("utf-8"); 

 response.setContentType("text/html;charset=utf-8"); 

 chain.doFilter(request, response); 

 public void init(FilterConfig config) throws ServletException{ 

 public void destroy(){ 

//在web.xml中加入如下代码，问题解决

 filter 

 filter-name encodingFilter /filter-name 

 filter-class com.xunchang.SetCharacterEncodingFilter /filter-class 

 /filter 

 filter-mapping 

 filter-name encodingFilter /filter-name 

 url-pattern /* /url-pattern 

 /filter-mapping