为什么在 url 生成器中我的所有坐标都添加了“+”？
why is "+" added to all my coordinates in url builder?
我有这个代码来构建一串坐标：
public String generateUrl(CompleteRoutingResponseShort completeRoutingResponse) {
if (completeRoutingResponse == null)
{
return "CompleteRoutingResponse is null";
}
UriBuilder builder = UriBuilder
.fromPath(Constants.LIVEMAP_BASE_URL)
.scheme("http");
builder.queryParam("lineGeom", getCoordsLists(completeRoutingResponse));
return builder.build().toString();
}
private String getCoordsLists() {
List<String> lists = new ArrayList<>();
for (AlternativeShort alternative : completeRoutingResponses.alternatives)
{
String list = "( " + alternative.coords.stream().map(item -> String.format("%.4f , %.4f", item.x, item.y))
.collect(Collectors.joining(", ")) + ")";
// list.replace("+","");
lists.add(list);
}
return String.join(", ", lists);
}
但是我得到这个 url 作为输出：
"http:/myhost.com/tiles/internal?lineGeom=(+34.9178+,+31.9550,+34.9175+,+31.9552,+34.9174+,+31.9553,+34.9172+,+31.9555,+34.9171+,+31.9556,+34.9171+,+31.9556,+34.9168+,+31.9559,+34.9168+,+31.9559,+34.9167+,+31.9561,+34.9165+,+31.9562,+34.9164+,+31.9564,+34.9161+,+31.9567,+34.9161+,+31.9568,+34.9160+,+31.9570,+34.9159+,+31.9571,+34.9158+,+31.9572,+34.9158+,+31.9573,+34.9157+,+31.9574,+34.9157+,+31.9574,+34.9166+,+31.9577,+34.9166+,+31.9577,+34.9178+,+31.9581,+34.9184+,+31.9583,+34.9188+,+31.9583,+34.9192+,+31.9584,+34.9195+,+31.9585,+34.9201+,+31.9585,+34.9204+,+31.9585,+34.9208+,+31.9585,+34.9211+,+31.9585,+34.9214+,+31.9585,+34.9216+,+31.9585,+34.9222+,+31.9584,+34.9224+,+31.9584,+34.9227+,+31.9583,+34.9233+,+31.9582,+34.9233+,+31.9582,+34.9238+,+31.9580,+34.9246+,+31.9577,+34.9257+,+31.9572,+34.9262+,+31.9571,+34.9265+,+31.9569,+34.9266+,+31.9569,+34.9268+,+31.9569,+34.9271+,+31.9568,+34.9276+,+31.9567,+34.9281+,+31.9566,+34.9284+,+31.9566,+34.9289+,+31.9566,+34.9307+,+31.9565,+34.9314+,+31.9564,+34.9320+,+31.9564,+34.9325+,+31.9563,+34.9325+,+31.9563,+34.9330+,+31.9563,+34.9335+,+31.9563,+34.9340+,+31.9562,+34.9345+,+31.9562,+34.9345+,+31.9562,+34.9357+,+31.9560,+34.9361+,+31.9560,+34.9365+,+31.9559,+34.9365+,+31.9559,+34.9369+,+31.9559,+34.9373+,+31.9558,+34.9373+,+31.9558,+34.9376+,+31.9557,+34.9377+,+31.9556,+34.9382+,+31.9554,+34.9387+,+31.9549,+34.9387+,+31.9549,+34.9389+,+31.9547,+34.9394+,+31.9542,+34.9394+,+31.9542,+34.9395+,+31.9543,+34.9395+,+31.9543,+34.9398+,+31.9545,+34.9399+,+31.9546,+34.9399+,+31.9546,+34.9401+,+31.9548,+34.9407+,+31.9555,+34.9414+,+31.9565,+34.9417+,+31.9571,+34.9417+,+31.9571,+34.9418+,+31.9572,+34.9418+,+31.9572,+34.9420+,+31.9578,+34.9420+,+31.9579,+34.9421+,+31.9585,+34.9421+,+31.9585,+34.9421+,+31.9590,+34.9421+,+31.9599,+34.9421+,+31.9599,+34.9422+,+31.9607,+34.9422+,+31.9608,+34.9423+,+31.9609,+34.9423+,+31.9610,+34.9423+,+31.9610,+34.9423+,+31.9611,+34.9424+,+31.9611,+34.9425+,+31.9612,+34.9426+,+31.9613,+34.9426+,+31.9613,+34.9426+,+31.9613,+34.9429+,+31.9616,+34.9432+,+31.9618,+34.9436+,+31.9621,+34.9449+,+31.9630,+34.9449+,+31.9630,+34.9487+,+31.9649,+34.9487+,+31.9649,+34.9525+,+31.9668,+34.9525+,+31.9668,+34.9531+,+31.9671,+34.9535+,+31.9672,+34.9538+,+31.9674,+34.9542+,+31.9676,+34.9546+,+31.9678,+34.9550+,+31.9680,+34.9553+,+31.9682,+34.9554+,+31.9682,+34.9558+,+31.9684,+34.9566+,+31.9689,+34.9570+,+31.9691,+34.9573+,+31.9694,+34.9579+,+31.9698,+34.9582+,+31.9701,+34.9586+,+31.9704,+34.9591+,+31.9709,+34.9594+,+31.9713,+34.9599+,+31.9720,+34.9602+,+31.9725,+34.9605+,+31.9730,+34.9608+,+31.9736,+34.9610+,+31.9742,+34.9612+,+31.9746,+34.9613+,+31.9752,+34.9614+,+31.9756,+34.9615+,+31.9764,+34.9627+,+31.9857,+34.9630+,+31.9883,+34.9632+,+31.9892,+34.9634+,+31.9902,+34.9637+,+31.9912,+34.9654+,+31.9961,+34.9658+,+31.9974,+34.9659+,+31.9979,+34.9660+,+31.9984,+34.9662+,+31.9994,+34.9663+,+32.0002,+34.9664+,+32.0011,+34.9671+,+32.0154,+34.9671+,+32.0166,+34.9671+,+32.0169,+34.9671+,+32.0176,+34.9670+,+32.0179,+34.9669+,+32.0185,+34.9668+,+32.0192,+34.9666+,+32.0198,+34.9663+,+32.0206,+34.9660+,+32.0211,+34.9656+,+32.0218,+34.9652+,+32.0225,+34.9649+,+32.0229,+34.9644+,+32.0236,+34.9627+,+32.0256,+34.9607+,+32.0279,+34.9602+,+32.0285,+34.9596+,+32.0292,+34.9587+,+32.0300,+34.9534+,+32.0351,+34.9530+,+32.0356,+34.9525+,+32.0361,+34.9520+,+32.0368,+34.9515+,+32.0374,+34.9414+,+32.0522,+34.9408+,+32.0531,+34.9404+,+32.0539,+34.9399+,+32.0548,+34.9396+,+32.0555,+34.9392+,+32.0567,+34.9381+,+32.0603,+34.9381+,+32.0603,+34.9357+,+32.0679,+34.9357+,+32.0679,+34.9341+,+32.0730,+34.9341+,+32.0730,+34.9336+,+32.0747,+34.9331+,+32.0765,+34.9331+,+32.0765,+34.9330+,+32.0767,+34.9330+,+32.0768,+34.9328+,+32.0781,+34.9328+,+32.0781,+34.9328+,+32.0793,+34.9328+,+32.0793,+34.9333+,+32.0832,+34.9341+,+32.0899,+34.9351+,+32.0989,+34.9358+,+32.1057,+34.9359+,+32.1064,+34.9359+,+32.1064,+34.9359+,+32.1075,+34.9361+,+32.1093,+34.9363+,+32.1106,+34.9366+,+32.1119,+34.9369+,+32.1130,+34.9369+,+32.1131,+34.9373+,+32.1141,+34.9375+,+32.1146,+34.9381+,+32.1159,+34.9387+,+32.1171,+34.9391+,+32.1178,+34.9391+,+32.1178,+34.9399+,+32.1189,+34.9403+,+32.1195,+34.9410+,+32.1204,+34.9411+,+32.1204,+34.9414+,+32.1208,+34.9442+,+32.1238,+34.9477+,+32.1273,+34.9477+,+32.1273,+34.9497+,+32.1294,+34.9497+,+32.1294,+34.9533+,+32.1331,+34.9533+,+32.1331,+34.9554+,+32.1350,+34.9556+,+32.1351,+34.9558+,+32.1352,+34.9562+,+32.1354,+34.9564+,+32.1355,+34.9566+,+32.1355,+34.9578+,+32.1358,+34.9582+,+32.1360,+34.9586+,+32.1361,+34.9589+,+32.1363,+34.9591+,+32.1364,+34.9593+,+32.1366,+34.9595+,+32.1368,+34.9596+,+32.1370,+34.9598+,+32.1372,+34.9598+,+32.1374,+34.9599+,+32.1377,+34.9600+,+32.1379,+34.9600+,+32.1381,+34.9600+,+32.1383,+34.9599+,+32.1385,+34.9599+,+32.1387,+34.9598+,+32.1389,+34.9597+,+32.1392,+34.9596+,+32.1393,+34.9595+,+32.1395,+34.9594+,+32.1397,+34.9592+,+32.1399,+34.9591+,+32.1400,+34.9589+,+32.1402,+34.9587+,+32.1403,+34.9560+,+32.1421,+34.9560+,+32.1421,+34.9515+,+32.1449,+34.9515+,+32.144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如何删除 + 标志？
在您的 getCoordsLists() 方法中，您使用 ", " 加入收集器
这就是为什么在构建 url 之后它会在每个坐标后添加空格。
所以只需将以下行中的 ", " 替换为 ","：
String list = "( " + alternative.coords.stream().map(item -> String.format("%.4f , %.4f", item.x, item.y))
.collect(Collectors.joining(", ")) + ")";
这是因为默认 url 编码器正在用“+”替换空格，这样 link 就不会被破坏。
您还应该以相同的方式替换最后一行，即返回字符串的地方。
我有这个代码来构建一串坐标：
public String generateUrl(CompleteRoutingResponseShort completeRoutingResponse) {
if (completeRoutingResponse == null)
{
return "CompleteRoutingResponse is null";
}
UriBuilder builder = UriBuilder
.fromPath(Constants.LIVEMAP_BASE_URL)
.scheme("http");
builder.queryParam("lineGeom", getCoordsLists(completeRoutingResponse));
return builder.build().toString();
}
private String getCoordsLists() {
List<String> lists = new ArrayList<>();
for (AlternativeShort alternative : completeRoutingResponses.alternatives)
{
String list = "( " + alternative.coords.stream().map(item -> String.format("%.4f , %.4f", item.x, item.y))
.collect(Collectors.joining(", ")) + ")";
// list.replace("+","");
lists.add(list);
}
return String.join(", ", lists);
}
但是我得到这个 url 作为输出：
"http:/myhost.com/tiles/internal?lineGeom=(+34.9178+,+31.9550,+34.9175+,+31.9552,+34.9174+,+31.9553,+34.9172+,+31.9555,+34.9171+,+31.9556,+34.9171+,+31.9556,+34.9168+,+31.9559,+34.9168+,+31.9559,+34.9167+,+31.9561,+34.9165+,+31.9562,+34.9164+,+31.9564,+34.9161+,+31.9567,+34.9161+,+31.9568,+34.9160+,+31.9570,+34.9159+,+31.9571,+34.9158+,+31.9572,+34.9158+,+31.9573,+34.9157+,+31.9574,+34.9157+,+31.9574,+34.9166+,+31.9577,+34.9166+,+31.9577,+34.9178+,+31.9581,+34.9184+,+31.9583,+34.9188+,+31.9583,+34.9192+,+31.9584,+34.9195+,+31.9585,+34.9201+,+31.9585,+34.9204+,+31.9585,+34.9208+,+31.9585,+34.9211+,+31.9585,+34.9214+,+31.9585,+34.9216+,+31.9585,+34.9222+,+31.9584,+34.9224+,+31.9584,+34.9227+,+31.9583,+34.9233+,+31.9582,+34.9233+,+31.9582,+34.9238+,+31.9580,+34.9246+,+31.9577,+34.9257+,+31.9572,+34.9262+,+31.9571,+34.9265+,+31.9569,+34.9266+,+31.9569,+34.9268+,+31.9569,+34.9271+,+31.9568,+34.9276+,+31.9567,+34.9281+,+31.9566,+34.9284+,+31.9566,+34.9289+,+31.9566,+34.9307+,+31.9565,+34.9314+,+31.9564,+34.9320+,+31.9564,+34.9325+,+31.9563,+34.9325+,+31.9563,+34.9330+,+31.9563,+34.9335+,+31.9563,+34.9340+,+31.9562,+34.9345+,+31.9562,+34.9345+,+31.9562,+34.9357+,+31.9560,+34.9361+,+31.9560,+34.9365+,+31.9559,+34.9365+,+31.9559,+34.9369+,+31.9559,+34.9373+,+31.9558,+34.9373+,+31.9558,+34.9376+,+31.9557,+34.9377+,+31.9556,+34.9382+,+31.9554,+34.9387+,+31.9549,+34.9387+,+31.9549,+34.9389+,+31.9547,+34.9394+,+31.9542,+34.9394+,+31.9542,+34.9395+,+31.9543,+34.9395+,+31.9543,+34.9398+,+31.9545,+34.9399+,+31.9546,+34.9399+,+31.9546,+34.9401+,+31.9548,+34.9407+,+31.9555,+34.9414+,+31.9565,+34.9417+,+31.9571,+34.9417+,+31.9571,+34.9418+,+31.9572,+34.9418+,+31.9572,+34.9420+,+31.9578,+34.9420+,+31.9579,+34.9421+,+31.9585,+34.9421+,+31.9585,+34.9421+,+31.9590,+34.9421+,+31.9599,+34.9421+,+31.9599,+34.9422+,+31.9607,+34.9422+,+31.9608,+34.9423+,+31.9609,+34.9423+,+31.9610,+34.9423+,+31.9610,+34.9423+,+31.9611,+34.9424+,+31.9611,+34.9425+,+31.9612,+34.9426+,+31.9613,+34.9426+,+31.9613,+34.9426+,+31.9613,+34.9429+,+31.9616,+34.9432+,+31.9618,+34.9436+,+31.9621,+34.9449+,+31.9630,+34.9449+,+31.9630,+34.9487+,+31.9649,+34.9487+,+31.9649,+34.9525+,+31.9668,+34.9525+,+31.9668,+34.9531+,+31.9671,+34.9535+,+31.9672,+34.9538+,+31.9674,+34.9542+,+31.9676,+34.9546+,+31.9678,+34.9550+,+31.9680,+34.9553+,+31.9682,+34.9554+,+31.9682,+34.9558+,+31.9684,+34.9566+,+31.9689,+34.9570+,+31.9691,+34.9573+,+31.9694,+34.9579+,+31.9698,+34.9582+,+31.9701,+34.9586+,+31.9704,+34.9591+,+31.9709,+34.9594+,+31.9713,+34.9599+,+31.9720,+34.9602+,+31.9725,+34.9605+,+31.9730,+34.9608+,+31.9736,+34.9610+,+31.9742,+34.9612+,+31.9746,+34.9613+,+31.9752,+34.9614+,+31.9756,+34.9615+,+31.9764,+34.9627+,+31.9857,+34.9630+,+31.9883,+34.9632+,+31.9892,+34.9634+,+31.9902,+34.9637+,+31.9912,+34.9654+,+31.9961,+34.9658+,+31.9974,+34.9659+,+31.9979,+34.9660+,+31.9984,+34.9662+,+31.9994,+34.9663+,+32.0002,+34.9664+,+32.0011,+34.9671+,+32.0154,+34.9671+,+32.0166,+34.9671+,+32.0169,+34.9671+,+32.0176,+34.9670+,+32.0179,+34.9669+,+32.0185,+34.9668+,+32.0192,+34.9666+,+32.0198,+34.9663+,+32.0206,+34.9660+,+32.0211,+34.9656+,+32.0218,+34.9652+,+32.0225,+34.9649+,+32.0229,+34.9644+,+32.0236,+34.9627+,+32.0256,+34.9607+,+32.0279,+34.9602+,+32.0285,+34.9596+,+32.0292,+34.9587+,+32.0300,+34.9534+,+32.0351,+34.9530+,+32.0356,+34.9525+,+32.0361,+34.9520+,+32.0368,+34.9515+,+32.0374,+34.9414+,+32.0522,+34.9408+,+32.0531,+34.9404+,+32.0539,+34.9399+,+32.0548,+34.9396+,+32.0555,+34.9392+,+32.0567,+34.9381+,+32.0603,+34.9381+,+32.0603,+34.9357+,+32.0679,+34.9357+,+32.0679,+34.9341+,+32.0730,+34.9341+,+32.0730,+34.9336+,+32.0747,+34.9331+,+32.0765,+34.9331+,+32.0765,+34.9330+,+32.0767,+34.9330+,+32.0768,+34.9328+,+32.0781,+34.9328+,+32.0781,+34.9328+,+32.0793,+34.9328+,+32.0793,+34.9333+,+32.0832,+34.9341+,+32.0899,+34.9351+,+32.0989,+34.9358+,+32.1057,+34.9359+,+32.1064,+34.9359+,+32.1064,+34.9359+,+32.1075,+34.9361+,+32.1093,+34.9363+,+32.1106,+34.9366+,+32.1119,+34.9369+,+32.1130,+34.9369+,+32.1131,+34.9373+,+32.1141,+34.9375+,+32.1146,+34.9381+,+32.1159,+34.9387+,+32.1171,+34.9391+,+32.1178,+34.9391+,+32.1178,+34.9399+,+32.1189,+34.9403+,+32.1195,+34.9410+,+32.1204,+34.9411+,+32.1204,+34.9414+,+32.1208,+34.9442+,+32.1238,+34.9477+,+32.1273,+34.9477+,+32.1273,+34.9497+,+32.1294,+34.9497+,+32.1294,+34.9533+,+32.1331,+34.9533+,+32.1331,+34.9554+,+32.1350,+34.9556+,+32.1351,+34.9558+,+32.1352,+34.9562+,+32.1354,+34.9564+,+32.1355,+34.9566+,+32.1355,+34.9578+,+32.1358,+34.9582+,+32.1360,+34.9586+,+32.1361,+34.9589+,+32.1363,+34.9591+,+32.1364,+34.9593+,+32.1366,+34.9595+,+32.1368,+34.9596+,+32.1370,+34.9598+,+32.1372,+34.9598+,+32.1374,+34.9599+,+32.1377,+34.9600+,+32.1379,+34.9600+,+32.1381,+34.9600+,+32.1383,+34.9599+,+32.1385,+34.9599+,+32.1387,+34.9598+,+32.1389,+34.9597+,+32.1392,+34.9596+,+32.1393,+34.9595+,+32.1395,+34.9594+,+32.1397,+34.9592+,+32.1399,+34.9591+,+32.1400,+34.9589+,+32.1402,+34.9587+,+32.1403,+34.9560+,+32.1421,+34.9560+,+32.1421,+34.9515+,+32.1449,+34.9515+,+32.144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如何删除 + 标志？
在您的 getCoordsLists() 方法中，您使用 ", " 加入收集器
这就是为什么在构建 url 之后它会在每个坐标后添加空格。
所以只需将以下行中的 ", " 替换为 ","：
String list = "( " + alternative.coords.stream().map(item -> String.format("%.4f , %.4f", item.x, item.y))
.collect(Collectors.joining(", ")) + ")";
这是因为默认 url 编码器正在用“+”替换空格，这样 link 就不会被破坏。
您还应该以相同的方式替换最后一行，即返回字符串的地方。