javax.servlet.ServletException: Servlet执行抛出一个异常怎么解决?
站长亲测
- 数据库版本过高会导致报错 HTTP状态 500 - 内部服务器错误
- 如果未在webapp导入lib库会导致500报错
HTTP状态 500 - 内部服务器错误类型 异常报告消息 Servlet执行抛出一个异常描述 服务器遇到一个意外的情况,阻止它完成请求。例外情况javax.servlet.ServletException: Servlet执行抛出一个异常org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)根本原因。java.lang.NoClassDefFoundError: org/apache/ibatis/io/ResourcesRequest.LoginServlet.doGet(LoginServlet.java:29)javax.servlet.http.HttpServlet.service(HttpServlet.java:488)javax.servlet.http.HttpServlet.service(HttpServlet.java:582)org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)根本原因。java.lang.ClassNotFoundException: org.apache.ibatis.io.Resourcesorg.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1420)org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1228)Request.LoginServlet.doGet(LoginServlet.java:29)javax.servlet.http.HttpServlet.service(HttpServlet.java:488)javax.servlet.http.HttpServlet.service(HttpServlet.java:582)org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)):注意 主要问题的全部 stack 信息可以在 server logs 里查看Apache Tomcat/8.5.87
org.mybatis mybatis 3.5.5 mysql mysql-connector-java 5.1.46
<?xml version="1.0" encoding="UTF-8"?><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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>Maven-Mybatis-Servlet-Spring-0408</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <properties> <maven.compiler.source>20</maven.compiler.source> <maven.compiler.target>20</maven.compiler.target> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!--导入Servlet依赖坐标--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <!-- 此处为什么需要添加该标签? provided指的是在编译和测试过程中有效,最后生成的war包时不会加入 因为Tomcat的lib目录中已经有servlet-api这个jar包,如果在生成war包的时候生效就会和Tomcat中的jar包冲突,导致报错 --> <scope>provided</scope> </dependency> <!-- mysql坐标 --><!-- <dependency>--><!-- <groupId>mysql</groupId>--><!-- <artifactId>mysql-connector-java</artifactId>--><!-- <version>5.1.32</version>--><!-- </dependency>--> <!--mybatis 依赖--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.5</version> </dependency> <!--mysql 驱动--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.46</version> </dependency> <!--junit 单元测试--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13</version> <scope>test</scope> </dependency> <!-- 添加slf4j日志api --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.20</version> </dependency> <!-- 添加logback-classic依赖 --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.2.3</version> </dependency> <!-- 添加logback-core依赖 --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-core</artifactId> <version>1.2.3</version> </dependency> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-websocket</artifactId> <version>10.1.7</version> </dependency> <dependency> <groupId>org.webjars.npm</groupId> <artifactId>gulp-insert</artifactId> <version>0.5.0</version> </dependency> </dependencies></project>
来源地址:https://blog.csdn.net/qq_44724480/article/details/130037714