拼接json字符串

<prename="code"class="java">/**
*通过读取流程对应工单的字段权限将字段权限拼接为json格式字符串
*拼接json字符串格式：
*[{"fieldNane":"name1","fieldRight":"right1"},{"fieldNane":"name2","fieldRight":"right2"},...{"fieldNane":"name3","fieldRight":"right3"}]
*@paramlist
*@return
*/</pre>
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<prename="code"class="java">publicStringappend2Json(Listlist){
StringBuffersb=newStringBuffer("[");
for(inti=0;i<list.size();i++){
FwtActionRightfarObj=(FwtActionRight)list.get(i);
StringfieldName=farObj.getFieldName().toLowerCase();
StringfieldRight=farObj.getFieldRight().toLowerCase();
sb.append("{\"fieldName\":\"");
sb.append(fieldName);
sb.append("\",\"fieldRight\":\"");
sb.append(fieldRight);
sb.append("\"");
sb.append("},");
//最后一个元素的右边大括号'}'后不添加','
if(i==list.size()-1){
sb.append("{\"fieldName\":\"");
sb.append(fieldName);
sb.append("\",\"fieldRight\":\"");
sb.append(fieldRight);
sb.append("\"");
sb.append("}");
}
}
sb.append("]");
Stringstr=sb.toString().replaceAll("\"","%22");//避免js获取此字符串时被双引号(")截断
//Stringstr=sb.toString().replaceAll("\"","%27");////避免js获取此字符串时被单引号(')截断
returnstr;
}</pre><br>
2.获取表单字段对应的权限，将其拼接为json格式的字符串，并且将其值传到页面<br>
<prename="code"class="java">/**
*显示‘现场检查’步骤--填单页面
*@parammapping
*@paramform
*@paramrequest
*@paramresponse
*@return
*@throwsException
*/
publicActionForwardshowAddNPatrolOrder_localeCheck(ActionMappingmapping,ActionFormform,
HttpServletRequestrequest,HttpServletResponseresponse)throwsException{
StringactionName="现场检查";
StringflowName="设备巡维工作联系单";
StringtableName="MAP_HISTORY_NPATROL";
Listlist=swfBiz.getFwtActionRights(actionName,tableName,flowName);
//拼接json格式的字符串
StringjsonStr=this.append2Json(list);
request.setAttribute("elementJson",jsonStr);
returnmapping.findForward("success");
}
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<p>3.jsp页面上的json格式字符串值</p>
<prename="code"class="html"style="background-color:rgb(255,255,255);"><prename="code"class="java"><inputname="elements"id="elements"type="text"style="DISPLAY:none;WIDTH:77px;HEIGHT:22px"size="10"value="${elementJson}"/></pre>
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<prename="code"class="html"style="background-color:rgb(255,255,255);">4.jsjQuery取页面上的json字符串格式值，并将其解析，转为json数据类型，然后根据不同字段的权限，写入其相应的格式。
</pre><prename="code"class="java">/**
*显示‘现场检查’页面
*/
varelementList=$('#elements').val();
elementList=unescape(elementList);//解析双引号、单引号
varjson=eval('('+elementList+')');//json格式字符串转为json数据类型
for(vari=0;i<json.length;i++){
varfieldName=json[i].fieldName;
varfieldRight=json[i].fieldRight;
if(fieldRight=='r'){//r--只读
$('#'+fieldName).attr("readonly","");
$('#'+fieldName).attr("readonly","readonly");
$('#'+fieldName).css("border-style","none");//.css("background-color","red");
}elseif(fieldRight=='w'){//w--可写
$('#'+fieldName).attr("readonly","");
$('#'+fieldName).css("border-style","");//.css("background-color","green");
}
}</pre>
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