是的，所以我认为使用表单编码的数据行不通。原因是它主要用于键值对，形式为
key1=value7&key2=value2&key3=value3...
您正在执行的操作仅使用两个键，listA和listB。因此，想象一下发送整个列表所需的值是什么样的。不好看 对于复杂数据，以JSON之类的格式发送数据更为可行。对于您的特定用例，此问题是需要发送两个不相关的对象（或数组）。为此，一种解决方案是使用多部分。您很幸运，因为我昨天刚刚发布了一个较晚的答案，说明了如何使用Angular进行处理。
我不会在这里对代码进行解释。一切都在该链接中说明。在阅读此答案时，请仔细阅读。我将使用Jersey和JAX-RS实现（链接中的示例也是如此-但它还提供其他替代实现）
资源资源
import java.util.List;import javax.ws.rs.Consumes;import javax.ws.rs.POST;import javax.ws.rs.Path;import javax.ws.rs.Produces;import org.glassfish.jersey.media.multipart.FormDataParam;@Path("/form")public class FormResource { @POST @Consumes("multipart/form-data") @Produces("text/plain") public String addIssuancesForFP(@FormDataParam("listA") List<TypeA> list1, @FormDataParam("listB") List<TypeB> list2) { StringBuilder response = new StringBuilder(); for(TypeA a: list1) { response.append(a.toString()).append("; "); } for (TypeB b: list2) { response.append(b.toString()).append("; "); } System.out.println("Service is called correctly"); return response.toString(); }}角度的
<!DOCTYPE html><html ng-app="formApp"> <head> <title>TODO supply a title</title> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <script src="js/libs/jquery/jquery.js"></script> <script src="js/libs/angular.js/angular.js"></script> <script> angular.module("formApp", []) .controller("defaultCtrl", function($scope, $http) { $scope.sendData = function() { var myList1 = []; var obj = {}; obj["val1"] = "value1"; obj["val2"] = "value2"; myList1.push(obj); var myList2 = []; var obj = {}; obj["val11"] = "value11"; obj["val12"] = "value12"; myList2.push(obj); var obj = {}; obj["val11"] = "value211"; obj["val12"] = "value212"; myList2.push(obj); var list1 = JSON.stringify(myList1); var list2 = JSON.stringify(myList2); var boundary = Math.random().toString().substr(2); var header = "multipart/form-data; charset=utf-8; boundary=" + boundary; $http({ url: "/api/form", headers: {"Content-Type": header}, data: createRequest(list1, list2, boundary), method: "POST" }).then(function(response) { $scope.result = response.data; }); function createRequest(list1, list2, boundary) { var multipart = ""; multipart += "--" + boundary + "rnContent-Disposition: form-data; name=listA" + "rnContent-type: application/json" + "rnrn" + list1 + "rn"; multipart += "--" + boundary + "rnContent-Disposition: form-data; name=listB" + "rnContent-type: application/json" + "rnrn" + list2 + "rn"; multipart += "--" + boundary + "--rn"; return multipart; } }; }); </script> </head> <body> <div ng-controller="defaultCtrl"> <button ng-click="sendData()">Send</button> <p>{{result}} </div> </body></html>结果
TypeA{val1=value1, val2=value2}; TypeB{val1=value11, val2=value12}; TypeB{val1=value211, val2=value212};这是预料之中的，因为我刚刚从toString()方法中构建了一个字符串，并在TypeA和TypeB类中实现了这些方法。public class TypeA { public String val1; public String val2; @Override public String toString() { return "TypeA{" + "val1=" + val1 + ", val2=" + val2 + '}'; }}public class TypeB { public String val11; public String val12; @Override public String toString() { return "TypeB{" + "val1=" + val11 + ", val2=" + val12 + '}'; } }希望这可以帮助。
