我使用 Apache Maven 3 创建了一个 Eclipse Web 项目。我遇到了表达式语言的问题。默认情况下禁用它,我尝试通过 web.xml 启用它是徒劳的。
<jsp-config>
    <jsp-property-group>
    <url-pattern>*.jsp</url-pattern>
    <el-enabled>true</el-enabled>
    <scripting-enabled>true</scripting-enabled>
    </jsp-property-group>
</jsp-config>
我能够使它们工作的唯一方法是在 JSP 页面顶部使用这个 scriptlet。
<%@ page isELIgnored="false" %>
我的项目的POM如下:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>learn.filter</groupId>
  <artifactId>LearnFilters</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>LearnFilters Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>
  </dependencies>
  <build>
    <finalName>LearnFilters</finalName>
    <plugins>
        <plugin>
          <groupId>org.apache.tomcat.maven</groupId>
          <artifactId>tomcat6-maven-plugin</artifactId>
          <version>2.0</version>
          <configuration>
            <port>8080</port>
            <path>/LearningFilters</path>
                <warFile>${project.basedir}/target/${project.build.finalName}.war</warFile>
          </configuration>
        </plugin>
        <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
    </plugins>
  </build>
</project>
有什么方法可以通过 web.xml 或默认启用它们?此外,这种构建会创建两个 web.xmls !!!这真的很令人困惑。请指教。