考虑:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 10 in the jsp file: /index.jsp
Mybean cannot be resolved to a type
7: <title></title>
8: </head>
9: <body>
10: <jsp:useBean id="bean1" class="Mybean"/>
11: <jsp:setProperty name="bean1"
12: property="name"
13: value="bean1" />
An error occurred at line: 17 in the jsp file: /index.jsp
Mybean cannot be resolved to a type
14: <jsp:setProperty name="bean1"
15: property="id"
16: value="1" />
17: <jsp:getProperty name="bean1" property="name" />
18: <jsp:getProperty name="bean1" property="id" />
19:
20: </body>
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
我创建了一个名为 Mybean 的 Java 类。我正在利用 JSP 来设置属性和获取属性。我收到一个无法解决的错误。
最佳答案
As of JSP 2.0, it is illegal to refer to any classes from the unnamed (a.k.a. default) package.
所以你的 bean 必须有一个包声明:
package foo;
public class MyBean {}
包必须体现在应用程序结构中；例如:
WEB-INF/classes/foo/MyBean.class
标记中必须使用限定名称:
<jsp:useBean id="bean1" class="foo.MyBean"/>
关于java - 无法为 JSP 编译此类，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14436217/