cc_fys的博客

Several ports (8005, 8080, 8009) required by Tomcat v8.0 Server at localhost are already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other process o

Eclipse设置server Locations及getServletContext().getRealPath获取到的工程目录路径，每次要修改server Location时，要先将tomcat服务器下部署的所有项目移除remove移除掉，再右键点击tomcat server选择clean。request.getSession().getServletContext().getRealPath("");

nested exception is java.lang.NoClassDefFoundError: Could not initialize class com.jacob.activeX.ActiveXComponent] with root cause java.lang.NoClassDefFoundError: Could not initialize class com.jacob.activeX.ActiveXComponent

保存数据到本地文件 private void saveDataToFile(String fileName,String data) { BufferedWriter writer = null; File file = new File("d:\\"+ fileName + ".json"); //如果文件不存在，则新建一个 if(!...

spring mvc 基于表单的认证过程及cookie应用和session管理，Response Headers HTTP响应首部字段中Set-Cookie，Request Headers HTTP请求首部字段JSESSIONID，spring mvc的具体配置和过程

Java jxl在excel模板中动态加入数据，及前端下载excel的例子前端通过点击一个下载按钮，根据前端显示的数据，下载Excel文件到本地。前端通过ajax的post请求，传递json字符串到后台。后台接收到json字符串，并拷贝一个模板Excel文件，假设命名为test1.xls。后台解析json,通过jxl，Java可以很方便的操作微软的Excel文档。将数据填入指定位置。