spring boot 配置servlet

因为项目的需求需要在,spring mvc中添加一个servlet,感觉怪怪的整了好久整了出来。

首先创建一个类,继承httpservlet 实现其中的方法 就跟在平常项目中创建servlet差不多。
public class UploadServlet extends HttpServlet {
    private static final long serialVersionUID = -8848851525451098142L;

    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException,
            IOException {
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        Uploader up = new Uploader(request);
        up.setSavePath("upload");
        String[] fileType = { ".gif", ".png", ".jpg", ".jpeg", ".bmp" };
        up.setAllowFiles(fileType);
        up.setMaxSize(10000); // 单位KB
        try {
            up.upload();
        } catch (Exception e) {
            e.printStackTrace();
        }
        String callback = request.getParameter("callback");
        String result = "{\"name\":\"" + up.getFileName() + "\", \"originalName\": \"" + up.getOriginalName()
                + "\", \"size\": " + up.getSize() + ", \"state\": \"" + up.getState() + "\", \"type\": \""
                + up.getType() + "\", \"url\": \"" + up.getUrl() + "\"}";
        result = result.replaceAll("\\\\", "\\\\");
        if (callback == null) {
            response.getWriter().print(result);
        } else {
            response.getWriter().print("<script>" + callback + "(" + result + ")</script>");
        }

    }


然后呢将这个类加载进spring中执行servlet的功能

@Bean
    public ServletRegistrationBean uploadServletRegistrationBean() {
        return new ServletRegistrationBean(new UploadServlet(), "/www/ueditor");
    }
在spring中注册一个bean
new ServletRegistrationBean(new UploadServlet(), "/www/ueditor");
ServletRegistrationBean 的构造函数有两个参数一个是你的servlet 另外一个是你的servlet的访问路径