window.open(url,"_self")

<s:iterator value="page.result" status="st">
                    <tr>
                        <td><s:property
                                value="#st.index+1 + (page.pageNo-1)*page.pageSize" />
                        </td>
                        <td><input type="checkbox" id="jsy" name="jsy" class="jsy"
                            value="<s:property value="cpzc.id"/>" /></td>
                        <td><a href="#" onclick="view(‘<s:property value="cpzc.id"/>‘);"><s:property
                                    value="cpzc.zcbh" />
                        </a>
                        </td>
</s:iterator>

function view(id){
var url = "<%=path%>/business/cpzc/cpzc!view.action?model.id="+id;
window.open(url,"_self");
}