- 首先要对项目的pom.xml进行添加依赖
点击查看代码
<dependencies>
<!--Servlet 依赖-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<!--JSP 依赖-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!--jstl表达式依赖 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--standard标签库-->
<!-- https://mvnrepository.com/artifact/taglibs/standard -->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
</dependencies>
sum="+num+"
"); %> **3.**for 循环点击查看代码
%>
<%
for (int i=0;i<5;i++){
%>
<h1>hello</h1>
<%
}
%>
点击查看代码
<%!
static {
System.out.println("loading Servlet");
}
private int glo=0;
private void print(){
System.out.println("xixixiix");
}
%>
这块也在web.xml里进行注册代码为
点击查看代码
<error-page>
<error-code>500</error-code>
<location>/img/500.png</location>
</error-page>