1. The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path

①项目右击-->build path -->添加libraries-->server runtime-->ok

②下图

2. JDBC连接Oracle:ORA-28009:connection as SYS should be as SYSDBA OR SYSOPER

解决方案:用户名设置为user = "sys as sysdba",其他不变

3. 表和视图不存在!

我的原因是:就比如sys用户,如果是不时用sysdba的身份登陆,就会出现这种情况,如果使用dba的身份登陆就对了

4. Failed to execute goal org.codehaus.cargo:cargo-maven2-plugin:1.2.3:run (cargo-run) on project yycg: Execution cargo-run of goal org.codehaus.cargo:cargo-maven2-plugin:1.2.3:run failed: [e:/apache-tomcat-7.0.52] is not a directory. It must point to the container home directory. -> [Help 1]

如图:

关键位置:run failed: [e:/apache-tomcat-7.0.52] is not a directory,

解决方案:tomcat配置错误,在pom.xml中修改插件配置中tomcat的路径

5. Could not write file: D:\JAVA_TOOLS\work-space\mars\sysconfig\.classpath.

build path时,出现,jre system library (unbound)

解决方案:修改 D:\JAVA_TOOLS\work-space\mars\sysconfig\.classpath. 这个文件,改为不隐藏,

6.Exception in thread “main" java.lang.UnsupportedClassVersionError(Unsupported major. minor version 52.0(xxx))

这个错两种情况①:jdk版本太低  ②位数不对,32,64位,我出现这个错的原因是位数不对,我的是64位  改为32位就对了

7.java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket.

1433端口没有打开

8.java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC][SQLServer]传入的表格格式数据流(TDS)远程过程调用(RPC)协议流不正确。参数 1 (""): 数据类型 0x38 未知。

驱动版本不对

9.No suitable driver found for jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=db_JXC;SelectMethod=Cursor

这里将jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=db_JXC;SelectMethod=Cursor  改为jdbc:sqlserver://localhost:1433;DatabaseName=db_JXC;SelectMethod=Cursor

也就是 将“microsoft” 去掉

项目出现 The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 解决方法的更多相关文章

  1. The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 解决方法

    项目忽然出现 The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Pat ...

  2. 项目忽然出现 The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 解决方法

    0.环境: 新装win8.1系统,Tomcat配置无误. 1.错误: 项目中某一.jps页面忽然出现错误,鼠标点上去为:The superclass "javax.servlet.http. ...

  3. java eclipse maven The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 解决方法

    在eclipse 中使用maven 创建java web项目,启动服务器遇到提示:The superclass "javax.servlet.http.HttpServlet" w ...

  4. maven新建web项目提示The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path

    maven新建web项目提示The superclass "javax.servlet.http.HttpServlet" was not found on the Java Bu ...

  5. The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 解决办法

    ♦  未在 Java构建路径中 找到父类 "javax.servlet.http.HttpServlet" ♦ 解决办法: 项目右击 → Build Path → 右侧 Add L ...

  6. 新建jsp文件,The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path错误解决方法

    新建一个jsp文件后,有一个错误,The superclass "javax.servlet.http.HttpServlet" was not found on the Java ...

  7. HttpServletRequest cannot be resolved to a type The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path

    HttpServletRequest cannot be resolved to a type The superclass "javax.servlet.http.HttpServlet& ...

  8. jsp页面提示“Multiple annotations found at this line: - The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path”解决方案

    Multiple annotations found at this line: - The superclass "javax.servlet.http.HttpServlet" ...

  9. Eclipse导入JavaWeb项目报错:The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path

    JavaWeb项目中写的JSP页面需要Web容器解析处理成HTML才能展示到前端浏览器,解析JSP需要Web容器.JSP页面顶端出现“红色”的报错信息:The superclass "jav ...

随机推荐

  1. Linux串口设备树硬件、软件流控设置

    /********************************************************************** * Linux串口设备树硬件.软件流控设置 * 说明: ...

  2. Ubuntu Core 网络配置

    /********************************************************************************* * Ubuntu Core 网络配 ...

  3. 【leetcode】345. Reverse Vowels of a String

    problem 345. Reverse Vowels of a String class Solution { public: string reverseVowels(string s) { , ...

  4. Linux sort命令详解

    linux之sort用法 sort命令是帮我们依据不同的数据类型进行排序,其语法及常用参数格式: sort [-bcfMnrtk][源文件][-o 输出文件] 补充说明:sort可针对文本文件的内容, ...

  5. 利用scrapy下载图片保存到本地

    1.先声明一下,起始位置已经是将所有的图片链接都能到pipelines.py中 2.创建一个类,继承于ImagesPipeline,因此也就需要导入ImagesPipeline from scrapy ...

  6. CodeForces - 441D: Valera and Swaps(置换群)

    A permutation p of length n is a sequence of distinct integers p1, p2, ..., pn (1 ≤ pi ≤ n). A permu ...

  7. tomcat服务器安装方法

    tomcat: 链接:https://pan.baidu.com/s/1pMEu0hP 密码:g0ah      (tomcat7) jdk :链接:https://pan.baidu.com/s/1 ...

  8. python----函数与函数式编程

    一. 函数与函数式编程 1. 面向对象编程 (类)class 2.面向过程编程 (过程) def 3.函数式编程 (函数) def (1)  函数的特点:          代码重用:         ...

  9. Go Example--协程

    package main import "fmt" func main() { //main gorouting中调用f函数 f("direct") //重新建 ...

  10. Java基础二(变量、运算符)

    1.变量2.运算符 ###01变量概述 * A: 什么是变量? * a: 变量是一个内存中的小盒子(小容器),容器是什么?生活中也有很多容器,例如水杯是容器,用来装载水:你家里的大衣柜是容器,用来装载 ...