commons-beanutils包在Servlet中获取参数

包依赖

    commons-beanutils
    commons-beanutils
    1.9.4

写一个Book类
 

public class Book implements Serializable {
    private Integer bid;
    private String bname;
    private String bauthor;
    private String publisher;
    private Double price;
    private Integer cid;
    private String cname;
}

使用BeanUtils将获取到的参数Map转化为Book 实体类

private void addBook(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        try {
            Map parameterMap = req.getParameterMap();
            Book book = new Book();
            //
            BeanUtils.populate(book, parameterMap);
            System.out.println(book);
            bookService.insertOne(book);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

前端表单提交

参数获取转化成bean结果