__shopping.java

简单的web应用,实现基本的购物车功能,有良好的扩展性

    response.setHeader("Content-Type", "text/html; charset=GBK");
    out = pageContext.getOut();
    JspWriter _originalOut = out;
    
    javax.servlet.http.HttpSession session = request.getSession(true);
    
    
    
    try { // error page try block
      
      response.setContentType("text/html; charset=GBK");
      
      _writeText(response, out, _wl_block0, _wl_block0Bytes);
      //^%$__TAG_CODEGEN : begin html custom tag block... //[ /shopping.jsp; Line: 5]
      /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 5]
      if (_html_html0 == null) _html_html0 = new org.apache.struts.taglib.html.HtmlTag(); //[ /shopping.jsp; Line: 5]
      _html_html0.setPageContext(pageContext); //[ /shopping.jsp; Line: 5]
      _html_html0.setParent((javax.servlet.jsp.tagext.Tag)null); //[ /shopping.jsp; Line: 5]
      _activeTag = _html_html0; //[ /shopping.jsp; Line: 5]
      _int0 = _html_html0.doStartTag(); //[ /shopping.jsp; Line: 5]
      if (_int0 == BodyTag.EVAL_BODY_BUFFERED) { //[ /shopping.jsp; Line: 5]
        throw new JspTagException("Since tag class org.apache.struts.taglib.html.HtmlTag does not implement BodyTag, it cannot return BodyTag.EVAL_BODY_BUFFERED"); //[ /shopping.jsp; Line: 5]
      } //[ /shopping.jsp; Line: 5]
      /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 5]
      if (_int0 != Tag.SKIP_BODY) { // begin !SKIP_BODY... //[ /shopping.jsp; Line: 5]
        do { //[ /shopping.jsp; Line: 5]
          /*** sync AT_BEGIN Vars after doInitBody ***/ //[ /shopping.jsp; Line: 5]
          /*** declare & sync NESTED TagExtra Vars here ***/ //[ /shopping.jsp; Line: 5]
          _writeText(response, out, _wl_block1, _wl_block1Bytes);
          //^%$__TAG_CODEGEN : begin form custom tag block... //[ /shopping.jsp; Line: 25]
          /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 25]
          if (_html_form0 == null) _html_form0 = new org.apache.struts.taglib.html.FormTag(); //[ /shopping.jsp; Line: 25]
          _html_form0.setPageContext(pageContext); //[ /shopping.jsp; Line: 25]
          _html_form0.setParent((javax.servlet.jsp.tagext.Tag)_html_html0); //[ /shopping.jsp; Line: 25]
          _activeTag = _html_form0; //[ /shopping.jsp; Line: 25]
          _html_form0.setAction(weblogic.utils.StringUtils.valueOf("/shoppingAction.do")); //[ /shopping.jsp; Line: 25]
          _html_form0.setMethod(weblogic.utils.StringUtils.valueOf("POST")); //[ /shopping.jsp; Line: 25]
          _int1 = _html_form0.doStartTag(); //[ /shopping.jsp; Line: 25]
          if (_int1 == BodyTag.EVAL_BODY_BUFFERED) { //[ /shopping.jsp; Line: 25]
            throw new JspTagException("Since tag class org.apache.struts.taglib.html.FormTag does not implement BodyTag, it cannot return BodyTag.EVAL_BODY_BUFFERED"); //[ /shopping.jsp; Line: 25]
          } //[ /shopping.jsp; Line: 25]
          /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 25]
          if (_int1 != Tag.SKIP_BODY) { // begin !SKIP_BODY... //[ /shopping.jsp; Line: 25]
            do { //[ /shopping.jsp; Line: 25]
              /*** sync AT_BEGIN Vars after doInitBody ***/ //[ /shopping.jsp; Line: 25]
              /*** declare & sync NESTED TagExtra Vars here ***/ //[ /shopping.jsp; Line: 25]
              _writeText(response, out, _wl_block2, _wl_block2Bytes);
              //^%$__TAG_CODEGEN : begin hidden custom tag block... //[ /shopping.jsp; Line: 26]
              /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 26]
              if (_html_hidden0 == null) _html_hidden0 = new org.apache.struts.taglib.html.HiddenTag(); //[ /shopping.jsp; Line: 26]
              _html_hidden0.setPageContext(pageContext); //[ /shopping.jsp; Line: 26]
              _html_hidden0.setParent((javax.servlet.jsp.tagext.Tag)_html_form0); //[ /shopping.jsp; Line: 26]
              _activeTag = _html_hidden0; //[ /shopping.jsp; Line: 26]
              _html_hidden0.setProperty(weblogic.utils.StringUtils.valueOf("event")); //[ /shopping.jsp; Line: 26]
              _int2 = _html_hidden0.doStartTag(); //[ /shopping.jsp; Line: 26]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 26]
              weblogic.servlet.jsp.StandardTagLib.fakeEmptyBodyTag(pageContext, _html_hidden0, _int2, true); //[ /shopping.jsp; Line: 26]
              if (_html_hidden0.doEndTag() == Tag.SKIP_PAGE) { _activeTag = null; _releaseTags(_html_hidden0); return; } //[ /shopping.jsp; Line: 26]
              _activeTag = _html_hidden0.getParent(); _html_hidden0.release(); //[ /shopping.jsp; Line: 26]
              //end hidden custom tag.... //[ /shopping.jsp; Line: 26]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 26]
              _writeText(response, out, _wl_block3, _wl_block3Bytes);
              //^%$__TAG_CODEGEN : begin hidden custom tag block... //[ /shopping.jsp; Line: 27]
              /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 27]
              if (_html_hidden0 == null) _html_hidden0 = new org.apache.struts.taglib.html.HiddenTag(); //[ /shopping.jsp; Line: 27]
              _html_hidden0.setPageContext(pageContext); //[ /shopping.jsp; Line: 27]
              _html_hidden0.setParent((javax.servlet.jsp.tagext.Tag)_html_form0); //[ /shopping.jsp; Line: 27]
              _activeTag = _html_hidden0; //[ /shopping.jsp; Line: 27]
              _html_hidden0.setProperty(weblogic.utils.StringUtils.valueOf("quantity")); //[ /shopping.jsp; Line: 27]
              _int2 = _html_hidden0.doStartTag(); //[ /shopping.jsp; Line: 27]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 27]
              weblogic.servlet.jsp.StandardTagLib.fakeEmptyBodyTag(pageContext, _html_hidden0, _int2, true); //[ /shopping.jsp; Line: 27]
              if (_html_hidden0.doEndTag() == Tag.SKIP_PAGE) { _activeTag = null; _releaseTags(_html_hidden0); return; } //[ /shopping.jsp; Line: 27]
              _activeTag = _html_hidden0.getParent(); _html_hidden0.release(); //[ /shopping.jsp; Line: 27]
              //end hidden custom tag.... //[ /shopping.jsp; Line: 27]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 27]
              _writeText(response, out, _wl_block4, _wl_block4Bytes);
              //^%$__TAG_CODEGEN : begin hidden custom tag block... //[ /shopping.jsp; Line: 28]
              /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 28]
              if (_html_hidden0 == null) _html_hidden0 = new org.apache.struts.taglib.html.HiddenTag(); //[ /shopping.jsp; Line: 28]
              _html_hidden0.setPageContext(pageContext); //[ /shopping.jsp; Line: 28]
              _html_hidden0.setParent((javax.servlet.jsp.tagext.Tag)_html_form0); //[ /shopping.jsp; Line: 28]
              _activeTag = _html_hidden0; //[ /shopping.jsp; Line: 28]
              _html_hidden0.setProperty(weblogic.utils.StringUtils.valueOf("id")); //[ /shopping.jsp; Line: 28]
              _int2 = _html_hidden0.doStartTag(); //[ /shopping.jsp; Line: 28]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 28]
              weblogic.servlet.jsp.StandardTagLib.fakeEmptyBodyTag(pageContext, _html_hidden0, _int2, true); //[ /shopping.jsp; Line: 28]
              if (_html_hidden0.doEndTag() == Tag.SKIP_PAGE) { _activeTag = null; _releaseTags(_html_hidden0); return; } //[ /shopping.jsp; Line: 28]
              _activeTag = _html_hidden0.getParent(); _html_hidden0.release(); //[ /shopping.jsp; Line: 28]
              //end hidden custom tag.... //[ /shopping.jsp; Line: 28]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 28]
              _writeText(response, out, _wl_block5, _wl_block5Bytes);
              //^%$__TAG_CODEGEN : begin iterate custom tag block... //[ /shopping.jsp; Line: 41]
              /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 41]
              if (_logic_iterate0 == null) _logic_iterate0 = new org.apache.struts.taglib.logic.IterateTag(); //[ /shopping.jsp; Line: 41]
              _logic_iterate0.setPageContext(pageContext); //[ /shopping.jsp; Line: 41]
              _logic_iterate0.setParent((javax.servlet.jsp.tagext.Tag)_html_form0); //[ /shopping.jsp; Line: 41]
              _activeTag = _logic_iterate0; //[ /shopping.jsp; Line: 41]
              _logic_iterate0.setId(weblogic.utils.StringUtils.valueOf("item")); //[ /shopping.jsp; Line: 41]
              _logic_iterate0.setName(weblogic.utils.StringUtils.valueOf("shoppingForm")); //[ /shopping.jsp; Line: 41]
              _logic_iterate0.setProperty(weblogic.utils.StringUtils.valueOf("productList")); //[ /shopping.jsp; Line: 41]
              _int2 = _logic_iterate0.doStartTag(); //[ /shopping.jsp; Line: 41]
              /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 41]
              if (_int2 != Tag.SKIP_BODY) { // begin !SKIP_BODY... //[ /shopping.jsp; Line: 41]
                if (_int2 == BodyTag.EVAL_BODY_BUFFERED) { //[ /shopping.jsp; Line: 41]
                  out = pageContext.pushBody(); //[ /shopping.jsp; Line: 41]
                  _logic_iterate0.setBodyContent((BodyContent)out); //[ /shopping.jsp; Line: 41]
                  _logic_iterate0.doInitBody(); //[ /shopping.jsp; Line: 41]
                } //[ /shopping.jsp; Line: 41]
                try { // _logic_iterate0 popBody() try/finally.. //[ /shopping.jsp; Line: 41]
                  do { //[ /shopping.jsp; Line: 41]
                    /*** sync AT_BEGIN Vars after doInitBody ***/ //[ /shopping.jsp; Line: 41]
                    /*** declare & sync NESTED TagExtra Vars here ***/ //[ /shopping.jsp; Line: 41]
                    java.lang.Object item = null; //[ /shopping.jsp; Line: 41]
                    item = (java.lang.Object)pageContext.findAttribute("item"); //[ /shopping.jsp; Line: 41]
                    out.print("\r\n                <tr bgcolor=\"#ffff88\">\r\n                  <td>\r\n                    ");
                    //^%$__TAG_CODEGEN : begin hidden custom tag block... //[ /shopping.jsp; Line: 44]
                    /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 44]
                    if (_html_hidden1 == null) _html_hidden1 = new org.apache.struts.taglib.html.HiddenTag(); //[ /shopping.jsp; Line: 44]
                    _html_hidden1.setPageContext(pageContext); //[ /shopping.jsp; Line: 44]
                    _html_hidden1.setParent((javax.servlet.jsp.tagext.Tag)_logic_iterate0); //[ /shopping.jsp; Line: 44]
                    _activeTag = _html_hidden1; //[ /shopping.jsp; Line: 44]
                    _html_hidden1.setName(weblogic.utils.StringUtils.valueOf("item")); //[ /shopping.jsp; Line: 44]
                    _html_hidden1.setProperty(weblogic.utils.StringUtils.valueOf("productId")); //[ /shopping.jsp; Line: 44]
                    _int3 = _html_hidden1.doStartTag(); //[ /shopping.jsp; Line: 44]
                    /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 44]
                    weblogic.servlet.jsp.StandardTagLib.fakeEmptyBodyTag(pageContext, _html_hidden1, _int3, true); //[ /shopping.jsp; Line: 44]
                    if (_html_hidden1.doEndTag() == Tag.SKIP_PAGE) { _activeTag = null; _releaseTags(_html_hidden1); return; } //[ /shopping.jsp; Line: 44]
                    _activeTag = _html_hidden1.getParent(); _html_hidden1.release(); //[ /shopping.jsp; Line: 44]
                    //end hidden custom tag.... //[ /shopping.jsp; Line: 44]
                    /*** sync AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 44]
                    out.print("\r\n                    ");
                    //^%$__TAG_CODEGEN : begin write custom tag block... //[ /shopping.jsp; Line: 45]
                    /*** declare AT_BEGIN TagExtra Vars here ***/ //[ /shopping.jsp; Line: 45]
                    if (_bean_write0 == null) _bean_write0 = new org.apache.struts.taglib.bean.WriteTag(); //[ /shopping.jsp; Line: 45]
                    _bean_write0.setPageContext(pageContext); //[ /shopping.jsp; Line: 45]
                    _bean_write0.setParent((javax.servlet.jsp.tagext.Tag)_logic_iterate0); //[ /shopping.jsp; Line: 45]
                    _activeTag = _bean_write0; //[ /shopping.jsp; Line: 45]
                    _bean_write0.setName(weblogic.utils.StringUtils.valueOf("item")); //[ /shopping.jsp; Line: 45]
                    _bean_write0.setProperty(weblogic.utils.StringUtils.valueOf("name")); //[ /shopping.jsp; Line: 45]
                    _int3 = _bean_write0.doStartTag(); //[ /shopping.jsp; Line: 45]
                    if (_int3 == BodyTag.EVAL_BODY_BUFFERED) { //[ /shopping.jsp; Line: 45]