Ajax请求WFS服务进行crud操作

一、需求

  WFS请求中有个Transaction方法，该方法支持对要素的增删改。可以通过Update、Insert和Delete实现对要素的增删改操作。下面构建一个插入数据的例子。
  这里用的是oracle spatial+geoserver+mapbox gl。

二、实例

  首先，在oracle中新建一张空间表，注册到元数据表中，并构建空间索引。

//注册到元数据表
INSERT INTO USER_SDO_GEOM_METADATA (TABLE_NAME, COLUMN_NAME, DIMINFO, SRID) 
VALUES ('roadline', 'geom', MDSYS.SDO_DIM_ARRAY (
        MDSYS.SDO_DIM_ELEMENT('X', 95.0, 122.0, 0.0000001),
        MDSYS.SDO_DIM_ELEMENT('Y', 21.5, 44.0, 0.0000001)), 4326);

//构建索引
create index idx_roadline on roadline(geom) indextype is mdsys.spatial_index;

  然后通过geoserver将表格发布为图层服务。
  最后就是在js中对wfs进行ajax请求，实现往表中插入数据。

function insertData(finaltr){
    var insertstr = "";
    for(var i = 0; i < finaltr.features.length; i++){
        var coors = finaltr.features[i].geometry.coordinates;
        var coorstr = "";
        for ( var j = 0; j < coors.length; j++){
            coorstr = coorstr  + coors[j] + " ";
        }
        insertstr = insertstr + '<wfs:Insert><roadline><GEOM>' + 
        '<gml:MultiLineString srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">' + 
        '<gml:lineStringMember><gml:LineString><gml:coordinates decimal="." cs="," ts=" ">' + coorstr + 
        '</gml:coordinates></gml:LineString></gml:lineStringMember></gml:MultiLineString>' + 
        '</GEOM><ID>' + finaltr.features[i].properties.id + '</ID><NAME>' +  finaltr.features[i].properties.name + 
        '</NAME><LEVELS>' + finaltr.features[i].properties.levels + '</LEVELS><ATTRIBUTE>' + finaltr.features[i].properties.attribute + 
        '</ATTRIBUTE><DIRECTION>' + finaltr.features[i].properties.direction + '</DIRECTION><OBJECTID>' + finaltr.features[i].properties.objectid + 
        '</OBJECTID><DIR>' + finaltr.features[i].properties.dir + '</DIR><LENGTH>' + finaltr.features[i].properties.length + 
        '</LENGTH><UP_DOWN>' + finaltr.features[i].properties.up_down + '</UP_DOWN><ROAD_ID>' + finaltr.features[i].properties.road_id + 
        '</ROAD_ID><ROAD_NAME>' + finaltr.features[i].properties.road_name +'</ROAD_NAME><TYPE_CODE>' + finaltr.features[i].properties.type_code + 
        '</TYPE_CODE><REGION_ID>' + finaltr.features[i].properties.region_id + '</REGION_ID>' + 
        '</dz_roadline></wfs:Insert>';
    }
    var header = '<wfs:Transaction service="WFS" version="1.1.0" ' + 
                'xmlns:wfs="http://www.opengis.net/wfs" ' +
                'xmlns:gml="http://www.opengis.net/gml">'
    var endstr = '</wfs:Transaction>';
    var data = header + insertstr + endstr;

    $.ajax({
        type: 'POST',
        url: geoJsonUrl,
        data: data,
        dataType: 'json',
        contentType:"text/plain;charset=UTF-8",
        success: function(data){
            console.log(data)
        },
        error:function(data){
            console.log(data);
        },
    });
}

三、问题

  如果geoserver报错read-only，那么应该是权限的问题，打开geoserver管理界面，点击左侧的Security中的Data栏，点击Rule path中的..w，勾选Grant access to any role下面的单选框，点击保存，清理缓存，再是修改后点击提交，保存成功。