JSONArray数据转换成java List

<div id="cnblogs\_post\_body" class="blogpost-body">1.后台接收json数组转成封装实体类的List： <div class="cnblogs\_code"><div class="cnblogs\_code\_toolbar"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="https://my.oschina.net//common.cnblogs.com/images/copycode.gif" alt="复制代码"></a></div> <pre>package no.integrasco.ingentia.news.qaedition;

public class Person {

1</span><span style="color: #0000ff">private</span><span style="color: #000000"> String name;
2
3</span><span style="color: #0000ff">private</span> <span style="color: #0000ff">int</span><span style="color: #000000"> age;
4
5</span><span style="color: #0000ff">public</span><span style="color: #000000"> String getName() {
6
7    </span><span style="color: #0000ff">return</span><span style="color: #000000"> name;
8}
9
10</span><span style="color: #0000ff">public</span> <span style="color: #0000ff">void</span><span style="color: #000000"> setName(String name) {
11
12    </span><span style="color: #0000ff">this</span>.name =<span style="color: #000000"> name;
13}
14
15</span><span style="color: #0000ff">public</span> <span style="color: #0000ff">int</span><span style="color: #000000"> getAge() {
16
17    </span><span style="color: #0000ff">return</span><span style="color: #000000"> age;
18}
19
20</span><span style="color: #0000ff">public</span> <span style="color: #0000ff">void</span> setAge(<span style="color: #0000ff">int</span><span style="color: #000000"> age) {
21
22    </span><span style="color: #0000ff">this</span>.age =<span style="color: #000000"> age;
23}

}

package no.integrasco.ingentia.news.qaedition;

import java.util.List;

import net.sf.json.JSONArray; import net.sf.json.JsonConfig;

public class JsonTest {

1</span><span style="color: #008000">/**</span><span style="color: #008000">
2 * </span><span style="color: #808080">@param</span><span style="color: #008000"> args
3 </span><span style="color: #008000">*/</span>
4<span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> <span style="color: #0000ff">void</span><span style="color: #000000"> main(String[] args) {
5
6    </span><span style="color: #008000">//</span><span style="color: #008000"> 转换方法1</span>
7    JSONArray array = JSONArray.fromObject("[{'name':'hehe','age':22}]"<span style="color: #000000">);
8    List</span>&lt;Person&gt; list = JSONArray.toList(array, Person.<span style="color: #0000ff">class</span>);<span style="color: #008000">//</span><span style="color: #008000"> 过时方法</span>
9    System.out.println(list.get(0<span style="color: #000000">).getName());
10
11    </span><span style="color: #008000">//</span><span style="color: #008000"> 转换方法2</span>
12    List&lt;?&gt; list2 = JSONArray.toList(array, <span style="color: #0000ff">new</span> Person(), <span style="color: #0000ff">new</span> JsonConfig());<span style="color: #008000">//</span><span style="color: #008000">参数1为要转换的JSONArray数据，参数2为要转换的目标数据，即List盛装的数据</span>
13    Person person = (Person) list2.get(0<span style="color: #000000">);
14    System.out.println(person.getAge());
15}

}</pre>

<div class="cnblogs\_code\_toolbar"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="https://my.oschina.net//common.cnblogs.com/images/copycode.gif" alt="复制代码"></a></div></div> 2.从页面接收json格式的数据，在java类里面进行解析 <div class="cnblogs\_code"><div class="cnblogs\_code\_toolbar"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="https://my.oschina.net//common.cnblogs.com/images/copycode.gif" alt="复制代码"></a></div> <pre>String jsonStr = {"name":"zfj","dd":\[{"ddr":"1","encrypt":"2","ff":"1","length":"23","ffe":"editStyled","ill":"1","pkor":"2","name":"zfj","isKey":"2","alias":"ffff"}\],"addRelations":\[{"type":"2","ld":"zfj","ld":"2"}\]};

//将此字符串放在ruquest或者其他的变量里面，传递到后台。

//如放在reques中： request.getRequestDispatcher("/geServlet?data="+jsonStr).forward(request,response);

//在servlet或java类里这样接收： String json = request.ge[size=large][/size]tParameter("data"); JSONObject jsonObject = JSONObject.fromObject(data); String name = jsonObject.getString（“name”）； ...... //对于数组这样接收用 JSONArray jan = (JSONArray) jsonObject.get("dd"); if(jan!=null||jan.size()!=0){ for(int i=0;i<ja.size();i++){ JSONObject jo = JSONObject.fromObject(ja.get(i)); String ff = jo.getString("ff"); ...... } } </pre>

<div class="cnblogs\_code\_toolbar"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="https://my.oschina.net//common.cnblogs.com/images/copycode.gif" alt="复制代码"></a></div></div> <div class="cnblogs\_code"><div class="cnblogs\_code\_toolbar"><a href="javascript:void(0);" onclick="copyCnblogsCode(this)" title="复制代码"><img src="https://my.oschina.net//common.cnblogs.com/images/copycode.gif" alt="复制代码"></a></div> <pre>String jsonStr = {"name":"zfj","dd":\[{"ddr":"1","encrypt":"2","ff":"1","length":"23","ffe":"editStyled","ill":"1","pkor":"2","name":"zfj","isKey":"2","alias":"ffff"}\],"addRelations":\[{"type":"2","ld":"zfj","ld":"2"}\]};

//将此字符串放在ruquest或者其他的变量里面，传递到后台。

//在servlet或java类里这样接收： String json = request.getParameter("data"); JSONObject jsonObject = JSONObject.fromObject(data); String name = jsonObject.getString（“name”）； ...... //对于数组这样接收用 JSONArray jan = (JSONArray) jsonObject.get("dd"); if(jan!=null||jan.size()!=0){ for(int i=0;i<ja.size();i++){ JSONObject jo = JSONObject.fromObject(ja.get(i)); String ff = jo.getString("ff"); ...... } } </pre>

JSONArray数据转换成java List

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