Java中前臺(tái)往后臺(tái)傳遞多個(gè)id參數(shù)的實(shí)例
1.傳字符串的形式,字符串中每個(gè)id用 “,” 隔開(kāi)
打印出來(lái)如下形式:
前臺(tái)JS代碼
function saveRoleAdd() { var roleNames = $('#roleNames').textbox("getText"); var roleDetail = {}; roleDetail.roleNames = roleNames; roleDetail.roleFunctionCount = 0; roleDetail.roleFunctionList = []; if(roleNames.length < 0 || roleNames.length == 0) { $.messager.alert("提示","請(qǐng)輸入角色名"); return; } var funNodeList = $('#roleFuntionTree').tree('getChecked', 'indeterminate'); var funLeafList = $('#roleFuntionTree').tree('getChecked'); if(funNodeList.length <=0 && funLeafList.length <= 0) { $.messager.alert("提示","請(qǐng)選擇權(quán)限節(jié)點(diǎn)"); return; } Array.prototype.push.apply(funNodeList, funLeafList); //將兩個(gè)lis合并為一個(gè)數(shù)組 var roleFunList = ""; var roleFunNameList = ""; for(var i=0; i < funNodeList.length; i++) { if (!isEmptyTarget(funNodeList[i].id)) { if(!isEmptyTarget(roleFunList)) { roleFunList += ","; //拼接成用逗號(hào)隔開(kāi)的字符串,里面是id roleFunNameList += ","; //拼接成用逗號(hào)隔開(kāi)的字符串,里面text } roleFunList += funNodeList[i].id; roleFunNameList += funNodeList[i].text; var funDetail = {}; funDetail.funId = parseInt(funNodeList[i].id); roleDetail.roleFunctionList.push(funDetail); } } roleDetail.roleFunctionCount = roleDetail.roleFunctionList.length; var rows = $("#tblRoleDetail").datagrid("getRows"); for (var i = 0; i < rows.length; i++) { if (roleNames == rows[i].roleNames) { $.messager.alert("提示","重復(fù)的角色名!"); return; } } $('#tblRoleDetail').datagrid('appendRow', { roleNames:roleNames, funId:roleFunNameList } ); $.ajax( { type : "POST", url : "permiss-manager/setRoleDetail.action?_dc=" + Math.random(), data : { roleName:roleNames, roleDetailData : roleFunList, }, dataType : "json", success : function(result) { $.messager.alert("提示",result.result); closeRoleAdd(); refreshRoleSelectTree(); } }); $('#rolePanel').panel('refresh', "afc/page/permission-manager/role-main.jsp"); }
后臺(tái)Action方法代碼
@Action("setRoleDetail") public void setRoleDetail() { webLogService.writeWebLog(ServletActionContext.getRequest().getSession().getAttribute("userId").toString(), "新增角色", ServletActionContext.getRequest().getRemoteAddr()); String roleName = ServletActionContext.getRequest().getParameter("roleName"); String roleDetailJsonData = ServletActionContext.getRequest().getParameter("roleDetailData"); // 這一部分就是轉(zhuǎn)成一個(gè)list。下面調(diào)用方式直接傳一個(gè)list過(guò)去 List<Integer> funIdList = new ArrayList<Integer>(); String [] arrar = StringUtils.split(roleDetailJsonData, ","); for (int i = 0; i < arrar.length; i++) { Integer funId = null; if(NumberUtils.isNumber(arrar[i])) { funId = NumberUtils.toInt(arrar[i]); funIdList.add(funId); } } permissionService.setRole(roleName, funIdList); try { HttpServletResponse response = ServletActionContext.getResponse(); response.setCharacterEncoding("utf-8"); JSONObject result = new JSONObject(); result.accumulate("result", "角色新增成功"); response.getWriter().write(result.toString()); } catch (Exception e) { e.printStackTrace(); } }
2.直接傳一個(gè)數(shù)組到后臺(tái)
前臺(tái)JS代碼
function saveRoleEdit() { var roleNames = $('#roleNames').textbox("getText"); var roleDetail = {}; roleDetail.roleFunctionCount = 0; roleDetail.roleFunctionList = []; if(roleNames.length < 0 || roleNames.length == 0) { $.messager.alert("提示","請(qǐng)輸入角色名"); return; } var funNodeList = $("#roleFuntionTree").tree('getChecked','indeterminate'); var funLeafList = $('#roleFuntionTree').tree('getChecked'); if(funNodeList.length <=0 && funLeafList.length <= 0) { $.messager.alert("提示","請(qǐng)選擇權(quán)限節(jié)點(diǎn)"); return; } Array.prototype.push.apply(funNodeList, funLeafList); // funNodeList,funLeafList兩個(gè)數(shù)組都變成合并后的數(shù)組 var roleFunArray = []; for(var i=0; i < funNodeList.length; i++) { if (!isEmptyTarget(funNodeList[i].id)) { roleFunArray.push(funNodeList[i].id); } } alert("權(quán)限ID Array為 :" + JSON.stringify(roleFunArray)); $.ajax( { type : "POST", url : "permiss-manager/modifyRoleAuthority.action?_dc=" + Math.random(), data : { roleName:roleNames, roleDetailStr:JSON.stringify(roleFunArray), }, success : function(result) { if(result == "success") { $.messager.alert("提示","修改權(quán)限成功!","info"); editRoleDialog(); refreshRoleSelectTree(); } else { $.messager.alert("提示","修改權(quán)限失??!","info"); } } }); }
后臺(tái)Action方法
@Action("modifyRoleAuthority") public void modifyRoleAuthority() throws IOException { HttpServletResponse response = ServletActionContext.getResponse(); response.setCharacterEncoding("utf-8"); webLogService.writeWebLog(ServletActionContext.getRequest().getSession().getAttribute("userId").toString(), "權(quán)限給予", ServletActionContext.getRequest().getRemoteAddr()); String roleName = ServletActionContext.getRequest().getParameter("roleName"); String newFuncListStr = ServletActionContext.getRequest().getParameter("roleDetailStr"); if(!StringUtils.isEmpty(roleName) && !StringUtils.isEmpty(newFuncListStr)) { List<Integer> newFuncList = new ArrayList<Integer>(); //這種方法可以把前臺(tái)傳過(guò)來(lái)的String類型的值 每個(gè)轉(zhuǎn)化成int 因?yàn)槲疫@里之前dao爆了 就是因?yàn)镾tring不能轉(zhuǎn)化為Int的原因 這里可以轉(zhuǎn)一下 JSONArray mJSONArray= JSONArray.fromObject(newFuncListStr); newFuncList = Arrays.asList((Integer[])JSONArray.toArray(mJSONArray, Integer.class)); if(!newFuncList.isEmpty()) { if(permissionService.setRole(roleName, newFuncList)) { response.getWriter().write("success"); } else { response.getWriter().write("fail"); } } } }
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