就看你使用了哪些外部的东西了。如:数据库JDBC的连接类之类的
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import java.io.*;public class TestBean implements java.io.Serializable
{
int price;
String description; public TestBean()
{
} void setPrice(int p)
{
price = p;
} void setDescription(String s)
{
description = s;
} public int getPrice()
{
return price;
} public String getDescription()
{
return description;
}
}我调用的时候用:<jsp:useBean id="test" class="TestBean" />
就是老是报错。
org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 11 in the jsp file: /index.jsp
Generated servlet error:
I:\Program Files\Tomcat 5.0\work\Catalina\localhost\mine\org\apache\jsp\index_jsp.java:55: cannot resolve symbol
symbol : class TestBean
location: class org.apache.jsp.index_jsp
TestBean test = null;
^
An error occurred at line: 11 in the jsp file: /index.jsp
Generated servlet error:
I:\Program Files\Tomcat 5.0\work\Catalina\localhost\mine\org\apache\jsp\index_jsp.java:57: cannot resolve symbol
symbol : class TestBean
location: class org.apache.jsp.index_jsp
test = (TestBean) _jspx_page_context.getAttribute("test", PageContext.PAGE_SCOPE);
^
An error occurred at line: 11 in the jsp file: /index.jsp
Generated servlet error:
I:\Program Files\Tomcat 5.0\work\Catalina\localhost\mine\org\apache\jsp\index_jsp.java:59: cannot resolve symbol
symbol : class TestBean
location: class org.apache.jsp.index_jsp
test = new TestBean();
^
An error occurred at line: 14 in the jsp file: /index.jsp
Generated servlet error:
I:\Program Files\Tomcat 5.0\work\Catalina\localhost\mine\org\apache\jsp\index_jsp.java:71: cannot resolve symbol
symbol : class TestBean
location: class org.apache.jsp.index_jsp
out.write(org.apache.jasper.runtime.JspRuntimeLibrary.toString((((TestBean)_jspx_page_context.findAttribute("test")).getDescription())));
^
4 errors不知道是不是web.xml配置的问题。我是把ROOT\WEB-INF里面的web.xml直接拷贝过来的,是不是这样不行,要自己写?