Java乔晓松-一次请求在同一个事务实现 - JAVA

HiberSessionFilter过滤器代码：

[java]
package www.csdn.dbshop.filter;

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.HttpServletRequest;

import org.hibernate.Transaction;

import www.csdn.dbshop.util.HiberSessionFactory;

public class HiberSessionFilter implements Filter {

public void destroy() {

}

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

HttpServletRequest req = (HttpServletRequest) request;
// 获取当前请求的URI路径，例如/shoping/csdn/MemberAction_query.action
String requesturi = req.getRequestURI();
// 截取字符串，获取‘_’之后的字符串
String str = requesturi.substring(requesturi.indexOf("_") + 1);
// 截取 _名字如过以 add ,update ,delete 开始就添加事务处理，把有过事务的处理都删除
// 根据获取‘_’之后的字符串，截取‘.’之前的字符串，即：就是URI中_到.之间的字符串，即：Action中的方法名
String uri = str.substring(0, str.indexOf("."));
// 判断截取的字符，如果是CUD则进行开启事务的操作，反之，不用开启事务
if ("addObject".equals(uri) || "updateObject".equals(uri)
|| "deleteObject".equals(uri) || "reg".equals(uri)
|| "register".equals(uri) || "buy".equals(uri)) {

Transaction ts = null;
try {
ts = HiberSessionFactory.getSession().beginTransaction();
chain.doFilter(request, response);
ts.commit();
} catch (Exception e) {
if (ts != null) {
ts.rollback();
}
throw new RuntimeException(e);
} finally {
// 关闭session
HiberSessionFactory.closeSession();
}
} else {
try {
chain.doFilter(request, response);
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
// 关闭session
HiberSessionFactory.closeSession();
}
}
}

public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub

}

}

package www.csdn.dbshop.filter;

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.HttpServletRequest;

import org.hibernate.Transaction;

import www.csdn.dbshop.util.HiberSessionFactory;

public class HiberSessionFilter implements Filter {

public void destroy() {

}

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

HttpServletRequest req = (HttpServletRequest) request;
// 获取当前请求的URI路径，例如/shoping/csdn/MemberAction_query.action
String requesturi = req.getRequestURI();
// 截取字符串，获取‘_’之后的字符串
String str = requesturi.substring(requesturi.indexOf("_") + 1);
// 截取 _名字如过以 add ,upda

Java乔晓松-一次请求在同一个事务实现 (一)