<jsp:useBean id="abc" ...>
<jsp:setProperty name="abc" property="str1" param="值">
<jsp:setProperty name="abc" property="str2" param="值">
</jsp:useBean>
<jsp:setProperty name="abc" property="str1" param="值">
<jsp:setProperty name="abc" property="str2" param="值">
</jsp:useBean>
解决方案 »
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- http://localhost:8080/admin/login.jsp
A a=new A(str1,str2);
信息内容: Could instantiate bean 'conndb', it is abstract, has no public default constructor, or is not a public class
本地信息: Could instantiate bean 'conndb', it is abstract, has no public default constructor, or is not a public class
根踪栈信息: javax.servlet.ServletException: Could instantiate bean 'conndb', it is abstract, has no public default constructor, or is not a public class
at jsp_servlet._admin.__list_spec2._jspService(__list_spec2.java:97)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:945)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:332)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:376)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:242)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:5363)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java:721)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3043)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2466)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133)Attribute: javax.servlet.ServletException: Could instantiate bean 'conndb', it is abstract, has no public default constructor, or is not a public class
然后
bb bb1=new bb(arg1,arg2);
感觉要实现这种情况会比较难,Bean在初始化使必须使用不带参数的够造函数,这是Bean的一个缺点,所以,你应该换一种思路传进那些参数,不要放在构造函数里。