WEB-INF/tlds/app.tld中

定义一个文件。

    "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">

    1.0

    1.2

    Application Tag Library

    This tag library contains functionality specific to the PICC CLAIM Application.

    

    

        select

        com.ct.framework.tag.SelectTag

        

            codeType

            true

            true

            代码类型

        

        

            language

            false

            true

            language

        

        

            id

            false

            true

            标签Id

        

        

            name

            false

            true

            下拉列表name

        

        

            cssClass

            false

            true

            下拉列表样式

        

        

            style

            false

            true

            风格

        

        

            selectedValue

            false

            true

            已选中的值

        

        

            multiple

            false

            true

            是否可以多选

        

        

            withAll

            false

            true

            是否显示全部

        

        

            withBlack

            false

            true

            是否显示空白

        

        

            condition

            false

            true

            父级列表（筛选条件）

        

        

            onchange

            false

            true

            onchange事件

        

在com.ct.framework.tag中有SelectTag.java

public class SelectTag extends TagSupport{

    private final Log logger = LogFactory.getLog(this.getClass());

    private String codeType;

    private String language;

    private String id;//标签id

    private String name;//下拉列表名字

    private String cssClass;//下拉列表样式

    private String style;//风格

    private String selectedValue;//已选中的值

    private Boolean multiple;//是否可以多选

    private Boolean withAll;//是否显示全部

    private Boolean withBlack;//是否显示空白

    private String codition;//父级列表（筛选条件）

    private String onchange;//onchange事件

 

    public int doStartTag() throws JspException{

        if(language == null){

            language = "C";

        }

        HttpSession httpSession = this.pageContext.getSession();

        StringBuffer resultBuffer = new StringBuffer();

        ConditionVo conditionVo = new ConditionVo();

        JspWriter jspWriter = pageContext.getOut();

        CodeCodeService codeCodeService =

                    (CodeCodeService)ServiceFactory.getService("codeCodeService");

        List codeCodeList;

        conditionVp.setSearchCondition(condition);

        try{

            //这步用type查询出类型下的code集合对象

            codeCodeList = codeCodeService.listCodeSelect(codeType,conditionVo,httpSession);

        }catch(Exception ex){

            ...

        }

        //标签的处理

        resultBuffer.append("");

        try{

            logger.debug("SelectTag标签:" + resultBuffer.toString());

            jspWriter.print(resultBuffer.toString());

        }catch(Exception ex){

            ...

        }

        return EVAL_BODY_INCLUDE;

    }

    public int doEndTag()throws Exception{

        this.codeType="";

        this.language="";

        this.id="";

        this.name="";

        this.cssClass="";

        this.selectedValue="";

        this.multiplie=false;

        this.withAll=false;

        this.withBlack=false;

        this.condition="";

        this.onchange="";

        return EVAL_PAGE;

    }

setter getter方法

}

 

Spring注入Service实例工厂

public class ServiceFactory{

    private static WebApplicationContext context;

    private ServiceFactory(){}

    public static void initServiceFactory(ServletContext servletContext){

        context = WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);

    }

    public static Object getService(String serviceName){
        return context.getBean(serviceName);

    }

}