SpirngMVC jsp页面空指针

SpirngMVC jsp页面空指针 ，这个错误基本上是jar包冲突，我看网上很多的方案

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>3.0-alpha-1</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>javax.servlet.jsp-api</artifactId>
      <version>2.3.3</version>
      <scope>provided</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

 pom.XML文件中添加scope这个标签

但是还是出现下面的错误

错误提示如下：

org.apache.jasper.JasperException: java.lang.NullPointerException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:356)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:416)
org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)

原因是上面并没有找出所有的冲突jar

解决方案：

找到pom文件

搜索框中输入jsp

我们发现还有一个jar 包中包含 ：javax.servlet.jsp-api

  <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-hadoop</artifactId>
      <version>2.5.0.RELEASE</version>
      <exclusions>
        <exclusion>
          <groupId>javax.servlet.jsp</groupId>
          <artifactId>jsp-api</artifactId>
        </exclusion>
      </exclusions>
    </dependency>

我们将这个jsp 排除在外就可以了

希望对你有所帮助