复杂json转list

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json数据格式如下

{  "resultcode": "200",  "reason": "查询支持的快递公司成功",  "result": [    {      "com": "顺丰",      "no": "sf"    },    {      "com": "申通",      "no": "sto"    },    {      "com": "圆通",      "no": "yt"    },    {      "com": "韵达",      "no": "yd"    }  ],  "error_code": 0}

对我们有用的是result下的数据

新建一个javabean 记得加toString

public class ExpressVo {private String com;private String no;/** * @return the com */public String getCom() {return com;}/** * @param com the com to set */public void setCom(String com) {this.com = com;}/** * @return the no */public String getNo() {return no;}/** * @param no the no to set */public void setNo(String no) {this.no = no;}/* (non-Javadoc) * @see java.lang.Object#toString() */@Overridepublic String toString() {return "ExpressVo [com=" + com + ", no=" + no + "]";}}

使用谷歌的json

String result = ExpressUtil.queryExpList(); //result为json数据    JsonParser parser = new JsonParser();JsonObject object = (JsonObject) parser.parse(result);JsonArray array = object.get("result").getAsJsonArray();List<ExpressVo> list = new ArrayList<ExpressVo>();for(int i=0;i<array.size();i++){ExpressVo express = new ExpressVo();JsonObject sub = array.get(i).getAsJsonObject();express.setCom(sub.get("com").getAsString());express.setNo(sub.get("no").getAsString());list.add(express);}return list;

这样就可以使用jsp的<c:foreach>标签正常的遍历需要的数据

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