我用的是Tomcat和Eclipse。
在/WEB-INF/classes/beans下有 From.java, 内容如下:
package beans;
public class Form{ String name,comments="Enter comments",credit; public void setName(String s){ name=s; }
public String getName(){ return name !=null?name:""; }
public void setComments(String s){ this.comments=s; }
public String getComments(){ return comments; } public void setCredit(String s){ credit=s; }
public String getCredit(){ return credit!=null?credit:""; } public String creditSelectionAttr( String creditName ){
if(credit!=null){
return credit.equals(creditName)?"checked":"";
}
return "";
}
}调用jsp页面如下:
form.jsp<html>
<head>
<TITLE>Textfields,Text Areas , and Radio Buttons</TITLE>
</head>
<BODY>//问题出现在下面的 class="beans.Form"
<jsp:useBean id="form" class="beans.Form" scope="request"> <jsp:setProperty name="from" property="*"/>
</jsp:useBean>
<FORM action="" method="post">
Name:<INPUT type="text" name="name" value="<%=form.getName()%>"/><P>
<INPUT type="radio" name="credit" value="visa" <%=form.creditSelectionAttr("mc")%>>master card <br>
<INPUT type="radio" name="credit" value="disc" <%=form.creditSelectionAttr("disc")%>>discovery
<input type="radio" name="cerdit" value="amex" <%=form.creditSelectionAttr("amex")%>>american express
</p><P>
<TEXTAREA name="comments" cols="25" rows="5"><%=form.getComments()%>></TEXTAREA>
</P>
<P><input type="submit"/></P>
</FORM>
</BODY>
</html>//问题出现在 class="beans.Form" 处,
在Eclipse中有如下信息提示:beans cannot be resolved or is not a type!现在jsp页面能正常显示,但是点击确定按钮后,出现一个报错的页面,而不是含输入信息的当前页面。请问是怎么回事!
在/WEB-INF/classes/beans下有 From.java, 内容如下:
package beans;
public class Form{ String name,comments="Enter comments",credit; public void setName(String s){ name=s; }
public String getName(){ return name !=null?name:""; }
public void setComments(String s){ this.comments=s; }
public String getComments(){ return comments; } public void setCredit(String s){ credit=s; }
public String getCredit(){ return credit!=null?credit:""; } public String creditSelectionAttr( String creditName ){
if(credit!=null){
return credit.equals(creditName)?"checked":"";
}
return "";
}
}调用jsp页面如下:
form.jsp<html>
<head>
<TITLE>Textfields,Text Areas , and Radio Buttons</TITLE>
</head>
<BODY>//问题出现在下面的 class="beans.Form"
<jsp:useBean id="form" class="beans.Form" scope="request"> <jsp:setProperty name="from" property="*"/>
</jsp:useBean>
<FORM action="" method="post">
Name:<INPUT type="text" name="name" value="<%=form.getName()%>"/><P>
<INPUT type="radio" name="credit" value="visa" <%=form.creditSelectionAttr("mc")%>>master card <br>
<INPUT type="radio" name="credit" value="disc" <%=form.creditSelectionAttr("disc")%>>discovery
<input type="radio" name="cerdit" value="amex" <%=form.creditSelectionAttr("amex")%>>american express
</p><P>
<TEXTAREA name="comments" cols="25" rows="5"><%=form.getComments()%>></TEXTAREA>
</P>
<P><input type="submit"/></P>
</FORM>
</BODY>
</html>//问题出现在 class="beans.Form" 处,
在Eclipse中有如下信息提示:beans cannot be resolved or is not a type!现在jsp页面能正常显示,但是点击确定按钮后,出现一个报错的页面,而不是含输入信息的当前页面。请问是怎么回事!
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右边有个红色的小框,鼠标移动到那里有如下信息提示:
beans cannot be resolved or is not a type!是什么原因啊?