Java 无法初始化代理-没有会话

嗨

我使用的是Grails1.2.1，当我运行我的应用程序时，我总是收到这条消息，并且没有任何人使用这些应用程序

org.hibernate.LazyInitializationException:无法初始化代理-无会话

在我看来，我已经加载了一个类菜单：

/**

菜单域 规则：一个控制器对应一个菜单 * */ 班级菜单{ 字符串menuName=“”； 字符串menuController=“”； 字符串menuAction=“”； 整数菜单顺序=1； 字符串菜单类=“”；//html类 整数myid=0

boolean isUser = false; // is this user menu (user only menu) 
boolean isAdmin = false; // is this administrator menu 
boolean isHorizontal =false; // is this horizontal or vertical (if false)
String menuType='all'; // pia, dam, da, br, all  
Menu parentMenu;

static hasMany = [childMenu:Menu] ;
static belongsTo = [parentMenu:Menu];

static constraints = {
    menuName(blank:false, nullable:false);
    menuOrder(blank:false, nullable:false);
    menuController(blank:true,nullable:false); // blank/nullable if there is no controller
    menuAction(blank:true,nullable:false); // blank/nullable if there is no controller
    menuClass(blank:true,nullable:false); // css class ... blank : using default menu
    parentMenu(blank:true, nullable:true);
    childMenu(blank:true, nullable:true);
}

String toString(){
    "${menuName}";
}

}

在布局/main.gsp中 我有以下代码：

                <%
            def currMenu = Menu.findByMenuController(params.controller);
            %>
            <g:if test="${currMenu}">
            <g:if test="${currMenu.isHorizontal}">
            <g:each in="${Menu.findAllByParentMenu(currMenu,[sort:'menuOrder',order:'asc'])}" status='x' var='submenu'>
            <li class='${submenu.menuClass} <% 
            if(submenu.menuController == params.controller){
                // dont hi-light on sign out 
                if(params.controller.equals("auth")){
                }else{
                    out << "selected";
                }
            }
            %>'> 
                    <g:if test="${!submenu.menuController.equals('')}">
                        <g:link controller='${submenu?.menuController}' action='${submenu?.menuAction}'>
                            ${submenu?.menuName} 
                        </g:link>
                    </g:if>
                    <g:else>
                            ${submenu?.menuName} 
                    </g:else>
                </li>
            </g:each>
            </g:if>
            <g:else>
            <%
            // get who is the parent 
            def parentMenu = currMenu.parentMenu ;
            %> 
            <g:each in="${Menu.findAllByParentMenu(parentMenu,[sort:'menuOrder',order:'asc'])}" status='x' var='submenu'>
            <li class='${submenu.menuClass} <% 
            if(submenu.menuController == params.controller){
                // dont hi-light on sign out 
                if(params.controller.equals("auth")){
                }else{
                    out << "selected";
                }
            }
            %>'> 
                <g:if test="${!submenu.menuController.equals('')}">
                    <g:link controller='${submenu?.menuController}' action='${submenu?.menuAction}'>
                        ${submenu?.menuName} 
                    </g:link>
                </g:if>
                <g:else>
                        ${submenu?.menuName} 
                </g:else>
            </li>
            </g:each>
            </g:else>
            </g:if>
        </ul>
        </g:if>

 
${子菜单？.menuName}
${子菜单？.menuName}

 
${子菜单？.menuName}
${子菜单？.menuName}

---

如何修复此错误？我可以重新启动grails，它可以正常工作。。但我只是好奇如何修复这个问题。当应用程序每隔几个小时不活动就会中断时，您的错误似乎与陈旧的连接有关

有关此问题的说明和解决方案，请参阅

---

Fabien.

您是否尝试搜索stackoverflow？或者你看到他们的建议了吗，

                <%
            def currMenu = Menu.findByMenuController(params.controller);
            %>
            <g:if test="${currMenu}">
            <g:if test="${currMenu.isHorizontal}">
            <g:each in="${Menu.findAllByParentMenu(currMenu,[sort:'menuOrder',order:'asc'])}" status='x' var='submenu'>
            <li class='${submenu.menuClass} <% 
            if(submenu.menuController == params.controller){
                // dont hi-light on sign out 
                if(params.controller.equals("auth")){
                }else{
                    out << "selected";
                }
            }
            %>'> 
                    <g:if test="${!submenu.menuController.equals('')}">
                        <g:link controller='${submenu?.menuController}' action='${submenu?.menuAction}'>
                            ${submenu?.menuName} 
                        </g:link>
                    </g:if>
                    <g:else>
                            ${submenu?.menuName} 
                    </g:else>
                </li>
            </g:each>
            </g:if>
            <g:else>
            <%
            // get who is the parent 
            def parentMenu = currMenu.parentMenu ;
            %> 
            <g:each in="${Menu.findAllByParentMenu(parentMenu,[sort:'menuOrder',order:'asc'])}" status='x' var='submenu'>
            <li class='${submenu.menuClass} <% 
            if(submenu.menuController == params.controller){
                // dont hi-light on sign out 
                if(params.controller.equals("auth")){
                }else{
                    out << "selected";
                }
            }
            %>'> 
                <g:if test="${!submenu.menuController.equals('')}">
                    <g:link controller='${submenu?.menuController}' action='${submenu?.menuAction}'>
                        ${submenu?.menuName} 
                    </g:link>
                </g:if>
                <g:else>
                        ${submenu?.menuName} 
                </g:else>
            </li>
            </g:each>
            </g:else>
            </g:if>
        </ul>
        </g:if>