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fatherican
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JSF request参数传递

 
阅读更多

1:JSF页面之间传参

方法1:

<h:outputLinkvalue="param2.jsf">

<h:outputTextvalue="Test4"></h:outputText>

<f:paramname="name"value="chen"></f:param>

<f:paramname="id"value="123456"></f:param>

</h:outputLink>

方法2:

<h:outputLinkvalue="param2.jsf?name=chen&id=123456">

<h:outputTextvalue="Test4"></h:outputText>

</h:outputLink>

2:JSF页面之间取得参数

方法1:

<h:outputTextvalue="#{param.name}"></h:outputText>

方法2:

<%=request.getParameter("name")%>

3:JSF页面到后台传参

<h:form>

<h:commandLinkvalue="Test2"action="#{paramBean.test}">

<f:paramname="name"value="zhang"></f:param>

<f:paramname="id"value="123456"></f:param>

</h:commandLink>

</h:form>

4:JSF后台取得页面值

方法1:

HttpServletRequestrequest=(HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest();

request.getParameter("name");

方法2:

MapvarMap=FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();

varMap.get("id");

方法3:

通过配置文件进行Bean的属性值注入,在Bean的方法中直接使用属性

<managed-bean>

<managed-bean-name>paramBean</managed-bean-name>

<managed-bean-class>com.spg.bean.ParamBean</managed-bean-class>

<managed-bean-scope>request</managed-bean-scope>

<managed-property>

<property-name>id</property-name>

<property-class>java.lang.String</property-class>

<value>#{param.id}</value>

</managed-property>

</managed-bean>

当前位置举例及相关总结

1:JS中可以使用java代码。获得当前Bean、获得当前Bean中属性值的java代码。

try{

parent.historyIframe.addHistory('/glp_user/glp_user_view_ViewForm.faces?<%=FacesContext.getCurrentInstance().getApplication().createValueBinding("#{glpUserForm.historyUrlParameter}").getValue(FacesContext.getCurrentInstance())%>','<%=LocaleMessage.getMessage("glpUser.glp_user_view_ViewForm.heading")%>(<%=FacesContext.getCurrentInstance().getApplication().createValueBinding("#{glpUserForm.glpUser.userName}").getValue(FacesContext.getCurrentInstance()) %>)',"1")

}catch(e){}

2:通过配置文件属性注入,param可以将页面上存入request的值放入后台的属性中。

public String getHistoryUrlParameter(){

if(this.glpUserPrimaryKey ==null)

return "_key=" + this.glpUser.getUserId();

return "_key=" + this.glpUserPrimaryKey;

}

<managed-bean>

<managed-bean-name>glpUserForm</managed-bean-name>

<managed-bean-class>

cn.com.brilliance.begen.webapp.action.GlpUserForm

</managed-bean-class>

<managed-bean-scope>request</managed-bean-scope>

<managed-property>

<property-name>glpUser</property-name>

<value>#{glpUser}</value>

</managed-property>

<managed-property>

<property-name>glpUserPrimaryKey</property-name>

<value>#{param._key}</value>

</managed-property>

</managed-bean>

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