java調用webservice接口，Jersey Restful WebService 接收 JSON 數組 對象

在使用 jersey restful 時 前端ajax post 數據到 服務器端，接收對象為null，測試代碼

web:

	var ts = [];//模擬兩條數據for (var i = 0; i < 2; i++) {ts.push({name:'name'+i,id:i});}var testData = {aa:ts};printLog('log',testData);$.rate.post({url: hostUrl + '/xxx/xxx/xxxx/queryDepartmentsAll',data:testData,cache: false,objRest:false,success: function(data) {console.log(data);}});

post data：

--- log ---
{"aa":[{"name":"name0","id":0},{"name":"name1","id":1}]}

server：

	/*** 查詢所有科室* @return* @throws Exception*/@POST@Path("/queryDepartmentsAll")@Produces(MediaType.APPLICATION_JSON)@Consumes(MediaType.APPLICATION_FORM_URLENCODED)public String queryDepartmentsAllTest(@Form(prefix="aa")List<TestBean> beans) throws Exception { loggin.info(beans);return "test...";}

java調用webservice接口，TestBean:

@XmlRootElement
public class TestBean {@FormParam("name")private String name;@FormParam("id")private Integer id;public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}}

有請?"debug "?出場.......

?ajax發出請求后 會經過 HttpServletInputMessage 處理，獲取表單帶的參數

調用getDecodedFormParameters，會把 url中的參數和表單參數合并，放入MultivaluedMapImpl 對象中

MultivaluedMapImpl點toString - -->?{aa[1][id]=[1], aa[0][name]=[name0], aa[0][id]=[0], aa[1][name]=[name1]}

java接口接收json數據？往下走，到了ListFormInjector

form 注入器有兩種，List，Map

最終走到了PrefixedMultivaluedMap 類

Java怎么接受一個數組？對象注入的方式是通過“變量[0].屬性” 注入的，而前段傳進的值是

解決辦法：

把花括號改成“ .” 就可以注入了

修改后：

aa[0].id=0
aa[0].name=name0
aa[1].id=1
aa[1].name=name1

后端接收到了

mybatis接收數組？

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jquery ajax data 如果對象中包涵數組，是使用?jQuery.param 函數格式化，所以導致 傳輸的數據格式不正確

jQuery.param = function( a, traditional ) {var prefix,s = [],add = function( key, value ) {// If value is a function, invoke it and return its valuevalue = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );};// Set traditional to true for jQuery <= 1.3.2 behavior.if ( traditional === undefined ) {traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;}// If an array was passed in, assume that it is an array of form elements.if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {// Serialize the form elementsjQuery.each( a, function() {add( this.name, this.value );});} else {// If traditional, encode the "old" way (the way 1.3.2 or older// did it), otherwise encode params recursively.for ( prefix in a ) {buildParams( prefix, a[ prefix ], traditional, add );}}// Return the resulting serializationreturn s.join( "&" ).replace( r20, "+" );
};

可以在請求前把data類型先處理，demo js

var datas = {};
for (var a in settings.data) {if ($.isArray(settings.data[a])) {var isObject = $.isPlainObject(settings.data[a][0]);//如果數組里是對象if (isObject) {for (var i = 0, ds = settings.data[a], len = ds.length; i < len; ++i) {for (var b in ds[i]) {datas[a + '[' + i + '].' + b] = ds[i][b];}}}} else {//datas[a] = settings.data[a];}
}

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