arrays之如何将 json 中的对象数组发布到 Struts2 操作

我正在向 Struts2 应用程序发送 JSON 请求。 json 请求具有值数组。这是 JSON 请求:

{"row":"10","col":"10","data":[{"word":"word1","clue":"clue1"},{"word":"word2","clue":"clue2"}]} 

JQuery 代码:

jasonRequest = createpuzzle_createjson(); 
 
$.ajax({ 
    type: 'POST', 
    url:'create.action', 
    dataType: 'json', 
    data: jasonRequest, 
    success: function(data){ 
        console.log(stringify(data)); 
    } 
}); 

Action 类:

public class GenerateCWAction extends ActionSupport{ 
 
private String row; 
private String col; 
private WCMap[] data; 
 
public String getRow() { 
    return row; 
} 
public void setRow(String row) { 
    this.row = row; 
} 
public String getCol() { 
    return col; 
} 
public void setCol(String col) { 
    this.col = col; 
} 
public WCMap[] getData() { 
    return data; 
} 
public void setData(WCMap[] data) { 
    this.data = data; 
} 
public String execute() { 
System.out.println("getRow:" + getRow());    
System.out.println("getCol:" + getCol()); 
System.out.println("getData:" + getData()); 
return SUCCESS; 
} 
} 

WCMap类:

public class WCMap { 
private String word; 
private String clue; 
public String getWord() { 
    return word; 
} 
public void setWord(String word) { 
    this.word = word; 
} 
public String getClue() { 
    return clue; 
} 
public void setClue(String clue) { 
    this.clue = clue; 
} 

输出:

getRow:10 
getCol:10 
getData:null 

我要取回数组数据

"数据":[{"word":"word1","clue":"clue1"},{"word":"word2","clue":"clue2"}]

此外，我尝试将数组更改为如下列表；我还是得到了 getData:null

private WCMap[] data; 

到

private List<WCMap> data; 

你能帮我解决这个问题吗？

请您参考如下方法:

这个答案是为像我这样的 future 谷歌人准备的 -

<强> 1。创建拦截器堆栈

<interceptors> 
        <interceptor-stack name="jsonStack"> 
            <interceptor-ref name="json"> 
                <param name="enableSMD">true</param> 
            </interceptor-ref> 
        </interceptor-stack> 
    </interceptors>   

<强> 2。将此拦截器用于您的 json 操作

<action name="youraction" class="your class" method="methodName"> 
            <interceptor-ref name="jsonStack"></interceptor-ref> 
            <result type="json" /> 
        </action> 

<强> 3。 Ajax 调用

var ajaxData = {}; 
    ajaxData["array"] = [//your data]; // e.g ["data1","data2"]; 
    $.ajax( { 
        "dataType": 'json', 
        "type": "POST",  
        "url": 'youraction.action', 
        "data":  JSON.stringify(ajaxData), 
        contentType: "application/json; charset=utf-8", 
        async : false, 
        success: function (json) { 
            console.log('success  :'+json); 
        }, 
        complete: function (msg,a,b) { 
            console.log('complete :'+msg);  
        }, 
        error : function(msg,a,b){ 
            console.log('error:'+msg); 
        } 
    } ); 

<强> 4。在您的操作类方法中为数组创建 getter 和 setter

List<String> array = new ArrayList<String>(); 
 
    public List<String> getArray() { 
        return array; 
    } 
    public void setArray(List<String> array) { 
        this.array = array; 
    }