struts2接收前台参数的3个方法
01.public class GetRequestParameterAction extends ActionSupport { 02. 03. private String bookName; 04. private String bookPrice; 05. 06. public String getBookName() { 07. return bookName; 08. } 09. 10. public void setBookName(String bookName) { 11. this.bookName = bookName; 12. } 13. 14. public String getBookPrice() { 15. return bookPrice; 16. } 17. 18. public void setBookPrice(String bookPrice) { 19. this.bookPrice = bookPrice; 20. } 21. 22. 23. public String execute() throws Exception{ 24. 25. 26. //方式一： 将参数作为Ａction的类属性，让OGNL自动填充 27. 28. System.out.println("方法一，把参数作为Action的类属性,让OGNL自动填充："); 29. System.out.println("bookName: "+this.bookName); 30. System.out.println("bookPrice: " +this.bookPrice); 31. 32. 33. //方法二:在Action中使用ActionContext得到parameterMap获取参数: 34. ActionContext context=ActionContext.getContext(); 35. Map parameterMap=context.getParameters(); 36. 37. String bookName2[]=(String[])parameterMap.get("bookName"); 38. String bookPrice2[]=(String[])parameterMap.get("bookPrice"); 39. 40. System.out.println("方法二，在Action中使用ActionContext得到parameterMap获取参数："); 41. System.out.println("bookName: " +bookName2[0]); 42. System.out.println("bookPrice: " +bookPrice2[0]); 43. 44. 45. //方法三:在Action中取得HttpServletRequest对象，使用request.getParameter获取参数 46. HttpServletRequest request = (HttpServletRequest)context.get(ServletActionContext.HTTP_REQUEST); 47. 48. String bookName=request.getParameter("bookName"); 49. String bookPrice=request.getParameter("bookPrice"); 50. 51. System.out.println("方法三，在Action中取得HttpServletRequest对象，使用request.getParameter获取参数："); 52. System.out.println("bookName: " +bookName); 53. System.out.println("bookPrice: " +bookPrice); 54. return SUCCESS; 55. 56. } 57. 58.} ??