BlogJava-Rising Sun -随笔分类-cpp

第一个C++类 geodatabase 转gml

brock — Thu, 02 Jan 2014 02:19:00 GMT

头文件
#ifndef CLASS_GEOMETRYTOSTRING

#define CLASS_GEOMETRYTOSTRING

#include

using namespace std;

class GeometryToString

{

public:

static bool getGeometryStr( FileGDBAPI::ShapeBuffer &geometry,string srid,string &geometrystr);

private:

static void getPointGML(FileGDBAPI::PointShapeBuffer *&pbuffer,string srid,string dimension, string &xml);

static void getLineGML(FileGDBAPI::MultiPartShapeBuffer *&lineGeometry,string srid,string dimension, string &xml);

static void getMultipointGML(FileGDBAPI::MultiPointShapeBuffer *&multipointGeometry,string srid,string dimension, string &xml);

static void getPolygonGML(FileGDBAPI::MultiPartShapeBuffer *&polygonGeometry,string srid,string dimension, string &xml);

};

#endif
--------------------------------

#include

#include "GeometryToString.h"

using namespace FileGDBAPI;

using namespace std;

/**

ShapeBuffer geometry format to gml

bool GeometryToString::getGeometryStr( ShapeBuffer &geometry,string srid,string &geometrystr)

{

ShapeType pType;

string dimension("2");

try{

geometry.GetShapeType(pType);

if(pType==shapeNull){

return false;

}

if(geometry.HasMs(pType) || geometry.HasZs(pType)){

dimension.assign("3");

}

//点

if(pType==shapePoint){

PointShapeBuffer *pPoint = static_cast(&geometry);

getPointGML(pPoint, srid, dimension, geometrystr);

}

//复杂点 shapeMultipoint = 8, shapeMultipointM = 28, shapeMultipointZM = 18, shapeMultipointZ = 20,

else if(pType==shapeMultipoint||pType==shapeMultipointZ){

MultiPointShapeBuffer *pPoint = static_cast(&geometry);

getMultipointGML(pPoint, srid, dimension, geometrystr);

}

//线

else if(pType==shapePolyline||pType==shapePolylineZ){

MultiPartShapeBuffer *pPoint = static_cast(&geometry);

getLineGML(pPoint, srid, dimension, geometrystr);

}

//面 shapePolygon = 5, shapePolygonM = 25, shapePolygonZM = 15, shapePolygonZ = 19,

else if(pType==shapePolygon||pType==shapePolygonZ){

MultiPartShapeBuffer *pPoint = static_cast(&geometry);

getPolygonGML(pPoint, srid, dimension, geometrystr);

}

//geometrystr = xml;

}catch(exception& e){

cout <<"格式化gml出错"<< e.what() << '\n';

return false;

}

return true;

}

/**

-73.2580598287651 42.7460586400617 -73.0196951738303 42.740396678634 -72.9229974292253 42.7373644761786 -72.4557700038866 42.7258525290856 -72.4621713056891 42.7468405310805 -72.4793225257782 42.7615879021406 -72.507269529053 42.768732690401 -72.513068008801 42.7892594013537 -72.5389169708409 42.8077338159122 -72.5534284639708 42.8606431711071 -72.5248100213574 42.912614176111 -72.5202170578447 42.951672527189 -72.5042636319544 42.9655846501007 -72.4733411974969 42.9761435837694 -72.4571590376321 42.9996036974295 -72.461752087004 43.0465044640799 -72.4434642578885 43.0790393128302 -72.4376049020671 43.1162700005077 -72.4523985528512 43.1560221784821 -72.4355986440692 43.2322535514026 -72.4024188454006 43.3073827061476 -72.4102315830492 43.3234041461304 -72.3976280543775 43.3510068532968 -72.4121395531362 43.3771255999364 -72.3962478080998 43.4101565518933 -72.3825156946812 43.4846296935806 -72.3949977682121 43.5175538931663 -72.3734983899535 43.5723746289273 -72.3330851941569 43.597364792188 -72.3040399378543 43.6985301192074 -72.2600555952028 43.7353001230665 -72.219122921336 43.7506925284353 -72.2060918209679 43.7646350589214 -72.1848363730122 43.80169046066 -72.1700895247441 43.8789176964692 -72.1216496397887 43.9092173247051 -72.1132040793556 43.9391659598858 -72.0917117306645 43.9579911279466 -72.1128078470402 43.9765149671878 -72.109908766997 43.9892291134735 -72.0852043813773 44.0089239861752 -72.0769190441221 44.0320405986229 -72.0347283650035 44.0833740182692 -72.0324473746587 44.0960996192242 -72.0495148341973 44.1004520944913 -72.034919852375 44.1207459288225 -72.0447245537617 44.1564355666161 -72.0592822460624 44.1821766291117 -72.0443903804218 44.2343798441307 -72.0595660047421 44.2614940911533 -72.0354953753776 44.2994343131499 -71.9944335108703 44.327548202346 -71.9389056579791 44.3257860034125 -71.9283617527138 44.3361121851129 -71.8348159803514 44.3441994129005 -71.821197308355 44.3503600453548 -71.7977291908463 44.3841728130012 -71.7665702593917 44.3982488046659 -71.6768843632127 44.4213427403399 -71.6563990024127 44.4401373612433 -71.6477091613881 44.4691741459765 -71.6365547217831 44.4767309013869 -71.6142227691161 44.4745070427354 -71.5866189807601 44.4945375694191 -71.5752435447921 44.5258056891543 -71.5914413886211 44.5388744007984 -71.5922884113102 44.5512031068491 -71.5367908177936 44.578931263059 -71.554102635183 44.5965889130363 -71.5680271516494 44.6374468081651 -71.588749347522 44.6505994869911 -71.6076787297883 44.6778622938611 -71.6311328527304 44.741710760694 -71.583501209059 44.779196995866 -71.5751009123659 44.8160197976273 -71.5063649605901 44.8996711859762 -71.5169776077168 44.9436961331566 -71.5409270967342 44.9765632062274 -71.5053723006288 45.0133517163227 -71.9018687560566 45.0073398737601 -72.547231170846 45.0053701041526 -73.1885457846918 45.0084861445147 -73.3447234868808 45.0061387945908 -73.3507583871194 44.9819729513452 -73.336414678892 44.9326039308501 -73.3823067594393 44.847933618761 -73.3690541280725 44.8191179021752 -73.3267863194035 44.7992935709543 -73.3731585750219 44.7242364367472 -73.3581509561493 44.6803685644813 -73.3730971364166 44.661276356252 -73.3701366913554 44.6343490646186 -73.3818251037205 44.619807725515 -73.3712960298211 44.5791669569445 -73.3478119840265 44.5539715457203 -73.3344524939974 44.5443282463014 -73.2933197444992 44.4328535783628 -73.2999951630005 44.4055331645411 -73.329788093029 44.3673904680867 -73.3053256664728 44.2601422576288 -73.3773326255291 44.2012475171298 -73.3820623364064 44.1721076120789 -73.4078648304615 44.1362270392698 -73.408756830709 44.1066103535608 -73.4352152780239 44.0638978024284 -73.4360007112789 44.0456791904392 -73.4082513023357 44.0182219013789 -73.4174061301201 43.9881969457531 -73.4053345287368 43.9148075869024 -73.3751207851313 43.8859769501208 -73.3847399017653 43.8045079717314 -73.35899716813 43.7784275686935 -73.3566696765928 43.7565583405993 -73.3709893845573 43.7142811167279 -73.4229598542952 43.6321147289768 -73.4183198417113 43.5824793859982 -73.38811421923 43.569143658301 -73.3636855615672 43.6149988679746 -73.303534516911 43.6247148128503 -73.2941043006646 43.6196528756939 -73.2817362682322 43.593187249577 -73.2914024969012 43.5750335705379 -73.2599837938072 43.5593823395161 -73.2383913589494 43.5128328494146 -73.2500714436228 43.3108539907423 -73.2760052890117 42.9402941192892 -73.2795831999318 42.8371033274803 -73.2961697572314 42.8035493647592 -73.2692753169001 42.7474814329983 -73.2580598287651 42.7460586400617

-----------------------------------------

-71.7901942031213 41.6013068793251 -71.8027434308056 41.415829054006 -71.8459956537022 41.403854541649 -71.8368696812943 41.3419614666217 -71.8477722040922 41.3253484832966 -71.866678442895 41.3227696452717 -71.7222643227053 41.327264312184 -71.4898880400564 41.3920853196253 -71.427318519639 41.4866893796324 -71.4192468515382 41.6522122329241 -71.3690125475301 41.7032911019032 -71.3935805976545 41.7611558353254 -71.3673874451962 41.7413502009834 -71.2840016520154 41.6795489704365 -71.2289761591777 41.7076939683675 -71.2666285816006 41.7497430522049 -71.3193277902704 41.7721958646079 -71.33979862314 41.784425562696 -71.3454831662469 41.8131613833438 -71.3345427095385 41.8579036075386 -71.3424931202155 41.875782891498 -71.3330859502879 41.8960311596525 -71.3839531547034 41.8884397544728 -71.3824052822434 41.9792630768654 -71.3786442228911 42.0137133195164 -71.4974303691298 42.0092535031424 -71.7978316087618 42.0042748046853 -71.7882488621949 41.721603395324 -71.7926052182918 41.6417579304639 -71.7901942031213 41.6013068793251

-71.1988086806703 41.6785003452844 -71.1999371652607 41.4633184834308 -71.1171327154704 41.4930619563069 -71.1412126344661 41.6552730544526 -71.1988086806703 41.6785003452844

-71.2691694549114 41.6212683171835 -71.3495250332551 41.445857741455 -71.288007152861 41.4836193369167 -71.2386732340455 41.4748497781273 -71.2194468005559 41.6356423127122 -71.2691694549114 41.6212683171835

void GeometryToString::getPolygonGML(FileGDBAPI::MultiPartShapeBuffer *&polygonGeometry,string srid,string dimension, string &xml){

int numPts;

polygonGeometry->GetNumPoints(numPts);

int numParts;

polygonGeometry->GetNumParts(numParts);

int* parts;

polygonGeometry->GetParts(parts);

Point* points;

polygonGeometry->GetPoints(points);

string gmlSub("");

if(numParts==1){

xml= " \

for (int i = 0; i < numPts; i++)

{

char buffer[32];

sprintf(buffer, "%1.14g", points[i].x);

gmlSub.append(buffer).append(" ");

sprintf(buffer, "%1.14g", points[i].y);

gmlSub.append(buffer).append(" ");

}

xml.append(gmlSub);

xml.append("\

");

return;

}

if(numParts>1){

xml="";

for(int i=0;i

gmlSub.append("\

");

int gt=0;

if( i==(numParts-1)){

gt=numPts;

}else{

gt=parts[i+1];

}

for (int j= parts[i]; j < gt; j++){

char buffer[32];

sprintf(buffer, "%1.14g", points[j].x);

gmlSub.append(buffer).append(" ");

sprintf(buffer, "%1.14g", points[j].y);

gmlSub.append(buffer).append(" ");

}

gmlSub.append("\

");

}

xml.append(gmlSub);

xml.append("");

return;

}

/**

6301153.87493073 1913012.75794829 435.0

6301172.62522131 1913331.50796697 424.0

void GeometryToString::getMultipointGML(FileGDBAPI::MultiPointShapeBuffer *&multipointGeometry,string srid,string dimension, string &xml){

int numPts;

multipointGeometry->GetNumPoints(numPts);

wcout << "Multipoint test:" << endl;

wcout << "Points: " << numPts << endl;

Point* points;

multipointGeometry->GetPoints(points);

double* zArray;

multipointGeometry->GetZs(zArray);

xml= " ";

string gmlSub("");

for (int i = 0; i < numPts; i++)

{

gmlSub.append("");

char buffer[32];

sprintf(buffer, "%1.14g", points[i].x);

gmlSub.append(buffer).append(" ");

sprintf(buffer, "%1.14g", points[i].y);

gmlSub.append(buffer).append(" ");

sprintf(buffer, "%1.14g", zArray[i]);

gmlSub.append(buffer).append(" ");

gmlSub.append("");

}

xml.append(gmlSub);

xml.append("");

}

/**

-91.3082592401631 40.0073363232732 -91.3055891069314 39.995346341049 -91.3139124547158 39.9690362798168 -91.3254189367963 39.9469572142013 -91.3246098997585 39.9350861975012 -91.32260281264 39.9251371873939 -91.3238158572038 39.896847138931 -91.3220157795743 39.8891571322064 -91.3241598689896 39.8853761196319 -91.3383584637069 39.873997056967 -91.3394875098243 39.8690760451917 -91.3354593387828 39.8630950480564 -91.3031399738825 39.8280070993682 -91.3022619338156 39.8090860744066 -91.2985697775187 39.7987370721841 -91.3005688605598 39.7949870596141 -91.3073361425165 39.7886050259611 -91.3117993281738 39.783596002295 -91.3119823326406 39.7676969773468 -91.3108232836762 39.7648359772821 -91.3049330369361 39.7602849923819 -91.2990957929273 39.7579610108158 -91.1947826970924 39.7164273102698

sssss

void GeometryToString::getLineGML(MultiPartShapeBuffer *&lineGeometry,string srid,string dimension, string &xml)

{

int numPts,numParts;

lineGeometry->GetNumPoints(numPts);

lineGeometry->GetNumParts(numParts);

int* parts;

lineGeometry->GetParts(parts);

Point* points;

lineGeometry->GetPoints(points);

string gmlSub("");

if(numParts==1){

xml= " \

for (int i = 0; i < numPts; i++)

{

char buffer[32];

sprintf(buffer, "%1.14g", points[i].x);

gmlSub.append(buffer).append(" ");

sprintf(buffer, "%1.14g", points[i].y);

gmlSub.append(buffer).append(" ");

}

xml.append(gmlSub);

xml.append(" \

");

return;

}

if(numParts>1){

xml="";

for(int i=0;i

gmlSub.append("\

");

int gt=0;

if( i==(numParts-1)){

gt=numPts;

}else{

gt=parts[i+1];

}

for (int j= parts[i]; j < gt; j++){

char buffer[32];

sprintf(buffer, "%1.14g", points[j].x);

gmlSub.append(buffer).append(" ");

sprintf(buffer, "%1.14g", points[j].y);

gmlSub.append(buffer).append(" ");

}

gmlSub.append("\

");

}

xml.append(gmlSub);

xml.append("");

return;

}

-88.0261499418109 44.4722440557492

void GeometryToString::getPointGML( PointShapeBuffer *&pbuffer,string srid,string dimension, string &xml)

{

xml= "";

Point* points;

pbuffer->GetPoint(points);

char buffer[32];

sprintf(buffer, "%1.14g", points[0].x);

xml.append(buffer).append(" ");

sprintf(buffer, "%1.14g", points[0].y);

xml.append(buffer).append(" ");

xml.append("");

}

brock 2014-01-02 10:19 发表评论

HelloJNI

brock — Mon, 30 Dec 2013 06:18:00 GMT

写给自己看看
java --HelloJNI ---

import java.io.UnsupportedEncodingException;

public class HelloJNI {

static {

System.loadLibrary("HelloJNI"); // hello.dll (Windows) or libhello.so (Unixes)

}

// A native method that receives nothing and returns void

private native void sayHello();

private native double sayOK(String dd);

private native void getFileGdb(String path);

private native String getFileGdbStr(String path);

private native GeodbEntity getGdbTable(GeodbEntity geo);

/**

* @param args

* @throws UnsupportedEncodingException

/**

* @param args

* @throws UnsupportedEncodingException

public static void main(String[] args) throws UnsupportedEncodingException {

// System.out.println( System.getProperty("java.library.path"));

HelloJNI hello = new HelloJNI();

// hello.sayHello(); // invoke the native method

// System.out.println(hello.sayOK("Apple"));

//hello.getFileGdb("D:/cpp/FileGDB_API_VS2012_1_3/samples/data/ExecuteSQL.gdb");

//GeodbEntity dd= hello.getGdbTable("D:/cpp/FileGDB_API_VS2012_1_3/samples/data/ExecuteSQL.gdb","dd");

GeodbEntity dd= new GeodbEntity();

dd.setTable("D:/cpp/FileGDB_API_VS2012_1_3/samples/data/ExecuteSQL.gdb 阿切尔");

hello.getGdbTable(dd);

System.out.println("java"+dd.getSrid());

for(int i=0;i

System.out.println(dd.getFieldValues().get(i));

}

// System.out.println(hello.getFileGdbStr("D:/cpp/FileGDB_API_VS2012_1_3/samples/data/ExecuteSQL.gdb"));

}

}
-----GeodbEntity ----

import java.util.List;

import java.util.ArrayList;

public class GeodbEntity {

//输入

private String table;

private String eodbPath;

//输出

/**列字段##隔开*/

private String Fields;

/**数据表##隔开*/

private ArrayList FieldValues=new ArrayList();

/**空间参考标识符*/

private String srid;

/**维度*/

private String dimension;

public String getTable() {

return table;

}

public void setTable(String table) {

this.table = table;

}

public String getEodbPath() {

return eodbPath;

}

public void setEodbPath(String eodbPath) {

this.eodbPath = eodbPath;

}

public String getSrid() {

return srid;

}

public void setSrid(String srid) {

this.srid = srid;

}

public String getDimension() {

return dimension;

}

public void setDimension(String dimension) {

this.dimension = dimension;

}

public String getFields() {

return Fields;

}

public void setFields(String fields) {

Fields = fields;

}

public ArrayList getFieldValues() {

return FieldValues;

}

public void setFieldValues(ArrayList fieldValues) {

FieldValues = fieldValues;

}

public String toString() {

return Fields;

}

--c++

hellojni.h

#define _Included_HelloJNI

#ifdef __cplusplus

extern "C" {

#endif

* Class: HelloJNI

* Method: sayHello

* Signature: ()V

JNIEXPORT void JNICALL Java_HelloJNI_sayHello

(JNIEnv *, jobject);

* Class: HelloJNI

* Method: sayOK

* Signature: (Ljava/lang/String;)D

JNIEXPORT jdouble JNICALL Java_HelloJNI_sayOK

(JNIEnv *, jobject, jstring);

* Class: HelloJNI

* Method: getFileGdb

* Signature: (Ljava/lang/String;)V

JNIEXPORT void JNICALL Java_HelloJNI_getFileGdb

(JNIEnv *, jobject, jstring);

* Class: HelloJNI

* Method: getFileGdbStr

* Signature: (Ljava/lang/String;)Ljava/lang/String;

JNIEXPORT jstring JNICALL Java_HelloJNI_getFileGdbStr

(JNIEnv *, jobject, jstring);

* Class: HelloJNI

* Method: getGdbTable

* Signature: (LGeodbEntity;)LGeodbEntity;

JNIEXPORT jobject JNICALL Java_HelloJNI_getGdbTable

(JNIEnv *, jobject, jobject);

#ifdef __cplusplus

}

#endif

----------hello c++------

#include

#include "HelloJNI.h"

#include

using namespace std;

using namespace FileGDBAPI;

using namespace std;

JNIEXPORT void JNICALL Java_HelloJNI_sayHello(JNIEnv *env, jobject thisObj) {

printf("Hello World!\n");

return;

}

JNIEXPORT jdouble JNICALL Java_HelloJNI_sayOK

(JNIEnv* env, jobject obj, jstring name){

const char* pname=env->GetStringUTFChars(name,NULL);

if(strcmp(pname,"Apple")==0){

env->ReleaseStringUTFChars(name,pname);

cout<<"After release:"<

return 1.2;

}

else{

env->ReleaseStringUTFChars(name,pname);

cout<<"After release:"<

return 2.1;

}

JNIEXPORT jstring JNICALL Java_HelloJNI_getFileGdbStr

(JNIEnv *env, jobject thisObj, jstring path){

/* fgdbError hr;

wstring errorText;

Geodatabase geodatabase;

std::wstring value;

const jchar* raw = env->GetStringChars(path, NULL);

if (raw != NULL) {

jsize len = env->GetStringLength(path);

value.assign(raw, raw + len);

env->ReleaseStringChars(path, raw);

}

if ((hr = OpenGeodatabase(value, geodatabase)) != S_OK)

{

wcout << "An error occurred while opening the geodatabase." << endl;

ErrorInfo::GetErrorDescription(hr, errorText);

wcout << errorText << "(" << hr << ")." << endl;

return (env)->NewStringUTF("7");

}

Row attrQueryRow;

EnumRows attrQueryRows;

wstring sqlStatement(L"SELECT * FROM Cities WHERE TYPE = 'city' AND OBJECTID < 10");

if ((hr = geodatabase.ExecuteSQL(sqlStatement, true, attrQueryRows)) != S_OK)

{

wcout << "An error occurred while performing the attribute query." << endl;

ErrorInfo::GetErrorDescription(hr, errorText);

wcout << errorText << "(" << hr << ")." << endl;

return (env)->NewStringUTF("7");

}

FieldInfo fieldInfo;

attrQueryRows.GetFieldInformation(fieldInfo);

int fieldCount;

FieldType fieldType;

wstring fieldName;

// Iterate through the returned rows printing out all field values.

short shortField;

int32 longField;

float floatField;

double doubleField;

string stringField;

wstring wstringField;

tm dateTimeField;

char datetime[80];

Guid globalIDField;

Guid guidField;

wstring strGuid;

wstring strGlobalID;

bool isNull;

byte * shapeBufferBytes ;

ShapeBuffer geometry;

ByteArray bss;

while (attrQueryRows.Next(attrQueryRow) == S_OK)

{

fieldInfo.GetFieldCount(fieldCount);

for (long fieldNumber = 0; fieldNumber < fieldCount; fieldNumber++)

{

fieldInfo.GetFieldType(fieldNumber, fieldType);

fieldInfo.GetFieldName(fieldNumber, fieldName);

attrQueryRow.IsNull(fieldName, isNull);

if (!isNull)

{

switch (fieldType)

{

case fieldTypeSmallInteger:

attrQueryRow.GetShort(fieldName, shortField);

wcout << shortField << endl;

break;

case fieldTypeInteger:

attrQueryRow.GetInteger(fieldName, longField);

wcout << longField << '\t';

break;

case fieldTypeSingle:

attrQueryRow.GetFloat(fieldName, floatField);

wcout << floatField << '\t';

break;

case fieldTypeDouble:

attrQueryRow.GetDouble(fieldName, doubleField);

wcout << doubleField << '\t';

break;

case fieldTypeString:

attrQueryRow.GetString(fieldName, wstringField);

wcout << wstringField << '\t';

break;

case fieldTypeDate:

attrQueryRow.GetDate(fieldName, dateTimeField);

strftime(datetime,80,"%a %b %d %I:%M:%S%p %Y", &dateTimeField);

wcout << datetime << '\t';

break;

case fieldTypeOID:

attrQueryRow.GetOID(longField);

wcout << longField << '\t';

break;

case fieldTypeGeometry:{

attrQueryRow.GetGeometry(geometry);

// attrQueryRow.GetBinary(fieldName, bss);

double x, y;

shapeBufferBytes = geometry.shapeBuffer;

wcout << "d::x::"<< x<<"y:"<

wcout <

break;

case fieldTypeBlob:

wcout << "Blob" << '\t';

break;

case fieldTypeGUID:

attrQueryRow.GetGUID(fieldName, guidField);

guidField.ToString(strGuid);

wcout << strGuid << '\t';

break;

case fieldTypeGlobalID:

attrQueryRow.GetGlobalID(globalIDField);

globalIDField.ToString(strGlobalID);

wcout << strGlobalID << '\t';

break;

default:

break;

}

else

{

wcout << "null" << '\t';

}

wcout << endl;

}

attrQueryRows.Close(); // Close the EnumRows

const char * pat="zhy好棒呀第一个东东出来了";

//定义java String类 strClass

jclass strClass = (env)->FindClass("Ljava/lang/String;");

//获取String(byte[],String)的构造器,用于将本地byte[]数组转换为一个新String

jmethodID ctorID = (env)->GetMethodID(strClass, "", "([BLjava/lang/String;)V");

//建立byte数组

jbyteArray bytes = (env)->NewByteArray(strlen(pat));

//将char* 转换为byte数组

(env)->SetByteArrayRegion(bytes, 0, strlen(pat), (jbyte*)pat);

// 设置String, 保存语言类型,用于byte数组转换至String时的参数

jstring encoding = (env)->NewStringUTF("GB2312");

//将byte数组转换为java String,并输出

return (jstring)(env)->NewObject(strClass, ctorID, bytes, encoding);

//return path;

}

JNIEXPORT void JNICALL Java_HelloJNI_getFileGdb(JNIEnv *env, jobject thisObj, jstring path) {

fgdbError hr;

wstring errorText;

Geodatabase geodatabase;

// const wchar_t * szStr =(wchar_t * )env->GetStringChars(path, NULL);

std::wstring value;

const jchar* raw = env->GetStringChars(path, NULL);

if (raw != NULL) {

jsize len = env->GetStringLength(path);

value.assign(raw, raw + len);

env->ReleaseStringChars(path, raw);

}

if ((hr = OpenGeodatabase(value, geodatabase)) != S_OK)

{

wcout << "An error occurred while opening the geodatabase." << endl;

ErrorInfo::GetErrorDescription(hr, errorText);

wcout << errorText << "(" << hr << ")." << endl;

return;

}

wstring sqlStatement(L"SELECT CITY_NAME, POP1990 FROM Cities WHERE TYPE = 'city' AND OBJECTID < 10");

EnumRows attrQueryRows;

if ((hr = geodatabase.ExecuteSQL(sqlStatement, true, attrQueryRows)) != S_OK)

{

wcout << "An error occurred while performing the attribute query." << endl;

ErrorInfo::GetErrorDescription(hr, errorText);

wcout << errorText << "(" << hr << ")." << endl;

return ;

}

// Iterate through the returned rows.

Row attrQueryRow;

int32 cityPop;

wstring cityName;

while (attrQueryRows.Next(attrQueryRow) == S_OK)

{

attrQueryRow.GetInteger(L"POP1990", cityPop);

attrQueryRow.GetString(L"CITY_NAME", cityName);

wcout << cityName << '\t' << cityPop << endl;

}

// SELECT * - Return all fields.

sqlStatement.assign(L"SELECT * FROM Cities WHERE TYPE = 'city' AND OBJECTID < 10");

if ((hr = geodatabase.ExecuteSQL(sqlStatement, true, attrQueryRows)) != S_OK)

{

wcout << "An error occurred while performing the attribute query." << endl;

ErrorInfo::GetErrorDescription(hr, errorText);

wcout << errorText << "(" << hr << ")." << endl;

return;

}

// Get the field type and name from the row enumerator.

FieldInfo fieldInfo;

attrQueryRows.GetFieldInformation(fieldInfo);

int fieldCount;

FieldType fieldType;

wstring fieldName;

// Iterate through the returned rows printing out all field values.

short shortField;

int32 longField;

float floatField;

double doubleField;

string stringField;

wstring wstringField;

tm dateTimeField;

char datetime[80];

Guid globalIDField;

Guid guidField;

wstring strGuid;

wstring strGlobalID;

bool isNull;

byte * shapeBufferBytes ;

ShapeBuffer geometry;

while (attrQueryRows.Next(attrQueryRow) == S_OK)

{

fieldInfo.GetFieldCount(fieldCount);

for (long fieldNumber = 0; fieldNumber < fieldCount; fieldNumber++)

{

fieldInfo.GetFieldType(fieldNumber, fieldType);

fieldInfo.GetFieldName(fieldNumber, fieldName);

attrQueryRow.IsNull(fieldName, isNull);

if (!isNull)

{

switch (fieldType)

{

case fieldTypeSmallInteger:

attrQueryRow.GetShort(fieldName, shortField);

wcout << shortField << endl;

break;

case fieldTypeInteger:

attrQueryRow.GetInteger(fieldName, longField);

wcout << longField << '\t';

break;

case fieldTypeSingle:

attrQueryRow.GetFloat(fieldName, floatField);

wcout << floatField << '\t';

break;

case fieldTypeDouble:

attrQueryRow.GetDouble(fieldName, doubleField);

wcout << doubleField << '\t';

break;

case fieldTypeString:

attrQueryRow.GetString(fieldName, wstringField);

wcout << wstringField << '\t';

break;

case fieldTypeDate:

attrQueryRow.GetDate(fieldName, dateTimeField);

strftime(datetime,80,"%a %b %d %I:%M:%S%p %Y", &dateTimeField);

wcout << datetime << '\t';

break;

case fieldTypeOID:

attrQueryRow.GetOID(longField);

wcout << longField << '\t';

break;

case fieldTypeGeometry:{

attrQueryRow.GetGeometry(geometry);

// attrQueryRow.GetBinary(fieldName, bss);

double x, y;

shapeBufferBytes = geometry.shapeBuffer;

memcpy(&x, geometry.shapeBuffer + 4, sizeof(x));

memcpy(&y, geometry.shapeBuffer + 12, sizeof(y));

//std::string *str3 = new std::string((char *)shapeBufferBytes);

wcout << "d::x::"<< x<<"y:"<

wcout <

break;

case fieldTypeBlob:

wcout << "Blob" << '\t';

break;

case fieldTypeGUID:

attrQueryRow.GetGUID(fieldName, guidField);

guidField.ToString(strGuid);

wcout << strGuid << '\t';

break;

case fieldTypeGlobalID:

attrQueryRow.GetGlobalID(globalIDField);

globalIDField.ToString(strGlobalID);

wcout << strGlobalID << '\t';

break;

default:

break;

}

else

{

wcout << "null" << '\t';

}

wcout << endl;

}

attrQueryRows.Close(); // Close the EnumRows

// Close the geodatabase

if ((hr = CloseGeodatabase(geodatabase)) != S_OK)

{

wcout << "An error occurred while closing the geodatabase." << endl;

ErrorInfo::GetErrorDescription(hr, errorText);

wcout << errorText << "(" << hr << ")." << endl;

return ;

}

printf("Hello World geodatebase!\n");

return;

}

std::string jstring2str(JNIEnv* env, jstring jstr)

{

char* rtn = NULL;

jclass clsstring = env->FindClass("java/lang/String");

jstring strencode = env->NewStringUTF("GB2312");

jmethodID mid = env->GetMethodID(clsstring, "getBytes", "(Ljava/lang/String;)[B");

jbyteArray barr= (jbyteArray)env->CallObjectMethod(jstr,mid,strencode);

jsize alen = env->GetArrayLength(barr);

jbyte* ba = env->GetByteArrayElements(barr,JNI_FALSE);

if(alen > 0)

{

rtn = (char*)malloc(alen+1);

memcpy(rtn,ba,alen);

rtn[alen]=0;

}

env->ReleaseByteArrayElements(barr,ba,0);

std::string stemp(rtn);

free(rtn);

return stemp;

}

jstring str2jstring(JNIEnv* env,const char* pat)

{

//定义java String类 strClass

jclass strClass = (env)->FindClass("Ljava/lang/String;");

//获取String(byte[],String)的构造器,用于将本地byte[]数组转换为一个新String

jmethodID ctorID = (env)->GetMethodID(strClass, "", "([BLjava/lang/String;)V");

//建立byte数组

jbyteArray bytes = (env)->NewByteArray(strlen(pat));

//将char* 转换为byte数组

(env)->SetByteArrayRegion(bytes, 0, strlen(pat), (jbyte*)pat);

// 设置String, 保存语言类型,用于byte数组转换至String时的参数

jstring encoding = (env)->NewStringUTF("GB2312");

//将byte数组转换为java String,并输出

return (jstring)(env)->NewObject(strClass, ctorID, bytes, encoding);

}

JNIEXPORT jobject JNICALL Java_HelloJNI_getGdbTable(JNIEnv *env, jobject obj,jobject _GeodbEntity){

const char * dd="4096";

//jclass userClass = env->FindClass("GeodbEntity");

jclass userClass=env->GetObjectClass(_GeodbEntity);

//jmethodID userMethod = env->GetMethodID(userClass,"","()V");

//jobject userObject = env->NewObject(userClass,userMethod);

//jmethodID construction_id = env->GetMethodID(userClass, "", "()V");

//得到构造方法的ID

//jobject userObject = env->NewObject(userClass, construction_id);

//jobject userObject = env->AllocObject(userClass);

//jmethodID setName_method=env->GetMethodID(userClass,"setSrid","(Ljava/lang/String;)V");

//env->CallVoidMethod(userObject,setName_method,dd);

//jclass objectClass = (env)->FindClass("GeodbEntity

jmethodID methodId=env->GetMethodID(userClass,"getTable","()Ljava/lang/String;");

//调用customer对象的特定方法getName

jstring js_name=(jstring)env->CallObjectMethod(_GeodbEntity,methodId,NULL);

//jfieldID table = (env)->GetFieldID(userClass,"table","Ljava/lang/String;");

//jchar dd=(env)->GetCharField(userClass,table);

//std::string value;

//const jchar* raw = env->GetStringChars(js_name, NULL);

//if (raw != NULL) {

//jsize len = env->GetStringLength(js_name);

//value.assign(raw, raw + len);

//env->ReleaseStringChars(js_name, raw);

//}

cout<

jfieldID str = (env)->GetFieldID(userClass,"srid","Ljava/lang/String;");

(env)->SetObjectField(_GeodbEntity,str,(env)->NewStringUTF(dd));

//获取arraylist 类

jclass cls_ArrayList = env->FindClass("java/util/ArrayList");

//获得arraylist id

jmethodID construct = env->GetMethodID(cls_ArrayList,"","()V");

//创建arraylist

jobject obj_ArrayList = env->NewObject(cls_ArrayList,construct);

//获取 arraylist 的add 方法

jmethodID arrayList_add = env->GetMethodID(cls_ArrayList,"add","(Ljava/lang/Object;)Z");

for(int i=0;i<10;i++){

jobject alistadd = (env)->NewStringUTF("my name is D:"+i);

//通过 add 方法添加数据到 arraylist中

env->CallObjectMethod(obj_ArrayList,arrayList_add,alistadd);

}

jfieldID str1 = (env)->GetFieldID(userClass,"FieldValues","Ljava/util/ArrayList;");

(env)->SetObjectField(_GeodbEntity,str1,obj_ArrayList);

return _GeodbEntity;

}

brock 2013-12-30 14:18 发表评论

Windows环境下libxml2库的使用小结

brock — Wed, 25 Dec 2013 06:49:00 GMT

-环境的搭建，下载与安装LIBXML2和ICONV

Libxml2是一个C语言的XML程序库，可以简单方便的提供对XML文档的各种操作，并且支持XPATH查询，以及部分的支持XSLT转换等功能。Libxml2的下载地址是http://xmlsoft.org/downloads.html ，完全版的库是开源的，并且带有例子程序和说明文档。完全版的文件名为:libxml2-2.7.8.tar.gz。

Libxml2中默认的内码是UTF-8，所有使用libxml2进行处理的xml文件，必须首先显式或者默认的转换为UTF-8编码才能被处理。
要在xml中使用中文，就必须能够在UTF-8和GB2312内码（较常用的一种简体中文编码）之间进行转换。Libxml2提供了默认的内码转换机制，并且在libxml2的Tutorial中有一个例子，事实证明这个例子并不适合用来转换中文。所以需要我们显式的使用ICONV来进行内码转换，libxml2本身也是ICONV使用进行转换的。ICONV是一个专门用来进行编码转换的库，基本上支持目前所有常用的编码。它是glibc库的一个部分，常常被用于UNIX系统中。当然，在windows下面使用也没有任何问题。

其下载地址是http://gnuwin32.sourceforge.net/packages/libiconv.htm，文件名为libiconv-1.9.2-1-lib.zip。

将libiconv-1.9.2-1-lib.zip解压，将其中的iconv.h放入C:\opt\include目录中，将其中的libiconv.lib放入C:\opt\lib中，并改名为iconv.lib.(没有opt目录就新建一个)。

解压libxml2-2.7.8.tar.gz文件到C盘根目录，在c:\libxml2-2.7.8\libxml2-2.7.8\win32目录中存放了多个Windows平台编译器的Makefile文件，我们使用vs2008，所以待会会用Makefile.msvc文件。

1.进入Visual Studio 2008 Command Prompt；

2.cd c:\libxml2-2.7.8\libxml2-2.7.8\win32

3.输入cscript configure.js compiler=msvc prefix=c:\opt include=c:\opt\include lib=c:\opt\lib debug=yes，回车执行。

4.最后使用nmake命令进行编译，输入nmake /f Makefile.msvc并回车。

此时会出现一下错误提示，

Makefile.msvc(465) : fatal error U1020: end-of-file found before next directive
Stop.

网上找了下原因，原来是Makefile.msvc中存在错误。

+!if "$(WITH_ICU)" == "1"

+LIBS = $(LIBS) icu.lib

+!endif

将以上三行前面的+号都删掉，重新执行nmake即可。

在当前win32目录中生成了一个bin.msvc目录，其中就有开发需要的libxml2.lib和libxml2.dll文件。

brock 2013-12-25 14:49 发表评论