java.lang.IllegalArgumentException: id to load is required for loading
2013-01-16 23:00
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javax.servlet.ServletException: java.lang.IllegalArgumentException: id to load is required for loading org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:520) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) com.sust.web.filter.SetCodeFilter.doFilter(SetCodeFilter.java:24)使用JPA时候想用ID去加载一个类，但是如果根本没有传递过去ID,ID为null....就出错了
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