prms+java的简单介绍

今天给各位分享prms+java的知识，其中也会对进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！

本文目录一览：

• 1、java 在cocos2dx中需怎么引入
• 2、现在要用Java Swing写一个可以在swing中打开office的软件，目前只要打开显示出来就行
• 3、求同一张jsp页面如何实现对应的事件切换不同的表单的java代码
• 4、Tomcat安装在中文目录下，无法启动服务
• 5、急求POI 将数据导出到Word的实例

java 在cocos2dx中需怎么引入

要完成在cocos2dx的场景上一个点击事件，传递一个消息到java层，下面让我们看看如何完成它。

包括

你需要在你的项目中添加以下引用，原作者已经建立了一个在线项目。请确保在你的项目中包含文件了c++和Java，这里有个链接你可以查看一下：EasyNDK

C++ 层面：

[cpp] view plaincopy

#include "NDKHelper.h"

// 在cocos2dx中的按钮点击方法

void HelloWorld::menuCloseCallback(CCObject* pSender)

{

//注册一个selector，那么当我们的native环境（java环境）调用这个字符串名字的函数（此处为名字为SampleSelector的函 数）的时候，这个selector可以响应请求

//注意：设置组名是为了在析构函数中能够清除掉selector

NDKHelper::AddSelector("HelloWorldSelectors",

"SampleSelector",

callfuncND_selector(HelloWorld::SampleSelector),

this);

// 为这个将要传递到native（也就是Java）语言中的消息设置参数

// 在c++中发送要调用的函数名

CCDictionary* prms = CCDictionary::create();

prms-setObject(CCString::create("SampleSelector"), "to_be_called");

// 最后在当前环境（c++）中调用native方法

SendMessageWithParams(string("SampleSelector"), prms);

}

// 一个回调选择器，native语言（java）将会调用它

void HelloWorld::SampleSelector(CCNode *sender, void *data)

{

CCLog("Called from native environment");

}

// 析构函数移除掉HelloWorldSelectors中的选择器（selectors）

HelloWorld::~HelloWorld()

{

// 移除相关联的选择器，因为我们将要销毁当前实例

NDKHelper::RemoveSelectorsInGroup("HelloWorldSelectors");

}

Java层面代码：

[cpp] view plaincopy

/** 当activity第一次被创建调用*/

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

// 在主activity中，设置这个activity作为c++消息的接受者

AndroidNDKHelper.SetNDKReciever(this);

}

//实现这个被c++发送消息调用的方法

//确保这个方法的名字跟c++传递过来的字符串相同

// 比如我们从c++中传递"SampleSelector"字符串，这就是为什么我们创建这个方法的原因了

public void SampleSelector(JSONObject prms)

{

Log.v("SampleSelector", "传过来的参数是 : " + prms.toString());

String CPPFunctionToBeCalled = null;

try

{

CPPFunctionToBeCalled = prms.getString("to_be_called");

}

catch (JSONException e)

{

// TODO Auto-generated catch block

e.printStackTrace();

}

AlertDialog.Builder builder = new AlertDialog.Builder(this);

builder.setMessage("这是一个android层中的popup").

setTitle("Hello World!").

setNeutralButton("OK", null).show();

// 发送带参数的消息，仅仅当selector列表中有这个相同名字的函数，c++才会接受这些消息，

AndroidNDKHelper.SendMessageWithParameters(CPPFunctionToBeCalled, null);

}

为了跟其他JavaSDK相连接，比如微博SDK，FaceBook SDK等，你可以按照这些sdk的java指导说明，实现这些消息，并传递接口到cocos2dx层面调用，使之成为你自己的SDK。在cocos2dx中。我已经通过这种方法实现了APPCircle，Flurry和很多其他的SDK。

现在要用Java Swing写一个可以在swing中打开office的软件，目前只要打开显示出来就行

先不说swing,首先你要做的是在Java中把office的文档读出来，这里通常需要使用的是poi.

以word为例。

public class WordExtractor {

public WordExtractor() {

}

public String extractText(InputStream in) throws IOException {

ArrayList text = new ArrayList();

POIFSFileSystem fsys = new POIFSFileSystem(in);

DocumentEntry headerProps = (DocumentEntry) fsys.getRoot().getEntry("WordDocument");

DocumentInputStream din = fsys.createDocumentInputStream("WordDocument");

byte[] header = new byte[headerProps.getSize()];

din.read(header);

din.close();

// Prende le informazioni dall'header del documento

int info = LittleEndian.getShort(header, 0xa);

boolean useTable1 = (info 0x200) != 0;

//boolean useTable1 = true;

// Prende informazioni dalla piece table

int complexOffset = LittleEndian.getInt(header, 0x1a2);

//int complexOffset = LittleEndian.getInt(header);

String tableName = null;

if (useTable1) {

tableName = "1Table";

} else {

tableName = "0Table";

}

DocumentEntry table = (DocumentEntry) fsys.getRoot().getEntry(tableName);

byte[] tableStream = new byte[table.getSize()];

din = fsys.createDocumentInputStream(tableName);

din.read(tableStream);

din.close();

din = null;

fsys = null;

table = null;

headerProps = null;

int multiple = findText(tableStream, complexOffset, text);

StringBuffer sb = new StringBuffer();

int size = text.size();

tableStream = null;

for (int x = 0; x size; x++) {

WordTextPiece nextPiece = (WordTextPiece) text.get(x);

int start = nextPiece.getStart();

int length = nextPiece.getLength();

boolean unicode = nextPiece.usesUnicode();

String toStr = null;

if (unicode) {

toStr = new String(header, start, length * multiple, "UTF-16LE");

} else {

toStr = new String(header, start, length, "ISO-8859-1");

}

sb.append(toStr).append(" ");

}

return sb.toString();

}

private static int findText(byte[] tableStream, int complexOffset, ArrayList text)

throws IOException {

//actual text

int pos = complexOffset;

int multiple = 2;

//skips through the prms before we reach the piece table. These contain data

//for actual fast saved files

while (tableStream[pos] == 1) {

pos++;

int skip = LittleEndian.getShort(tableStream, pos);

pos += 2 + skip;

}

if (tableStream[pos] != 2) {

throw new IOException("corrupted Word file");

} else {

//parse out the text pieces

int pieceTableSize = LittleEndian.getInt(tableStream, ++pos);

pos += 4;

int pieces = (pieceTableSize - 4) / 12;

for (int x = 0; x pieces; x++) {

int filePos =

LittleEndian.getInt(tableStream, pos + ((pieces + 1) * 4) + (x * 8) + 2);

boolean unicode = false;

if ((filePos 0x40000000) == 0) {

unicode = true;

} else {

unicode = false;

multiple = 1;

filePos = ~(0x40000000); //gives me FC in doc stream

filePos /= 2;

}

int totLength =

LittleEndian.getInt(tableStream, pos + (x + 1) * 4)

- LittleEndian.getInt(tableStream, pos + (x * 4));

WordTextPiece piece = new WordTextPiece(filePos, totLength, unicode);

text.add(piece);

}

}

return multiple;

}

public static void main(String[] args){

WordExtractor w = new WordExtractor();

POIFSFileSystem ps = new POIFSFileSystem();

try{

File file = new File("C:\\test.doc");

InputStream in = new FileInputStream(file);

String s = w.extractText(in);

System.out.println(s);

}catch(Exception e){

e.printStackTrace();

}

}

}

class WordTextPiece {

private int _fcStart;

private boolean _usesUnicode;

private int _length;

public WordTextPiece(int start, int length, boolean unicode) {

_usesUnicode = unicode;

_length = length;

_fcStart = start;

}

public boolean usesUnicode() {

return _usesUnicode;

}

public int getStart() {

return _fcStart;

}

public int getLength() {

return _length;

}

}

内容都取出来了，在Swing文档上append String不就好了

那就有些麻烦了，像Eclipse这种做的这么好的编辑器，打开word文件都是直接启动office去打开的，你这个可能有些麻烦。

求同一张jsp页面如何实现对应的事件切换不同的表单的java代码

java后台中把返回的数据保存到 session中 如：String maxPrmsCode = "1";

Struts2Utils.getSession().setAttribute("maxPrmsCode", maxPrmsCode);

前台获取maxPrmsCode值，

c:if test="${maxPrmsCode eq '1'}"

aaaaaaaa

/c:if

c:if test="${maxPrmsCode !eq '1'}"

bbbbbbbbb

/c:if

Tomcat安装在中文目录下，无法启动服务

tomcat不要安装在中文路径下，不光是tomcat，其他和java相关的软件都不要安装在中文路径下。

急求POI 将数据导出到Word的实例

import java.io.*;

import java.util.*;

import org.apache.poi.poifs.filesystem.*;

import org.apache.poi.util.LittleEndian;

public class WordTest {

public WordTest() {

}

public static boolean writeWordFile(String path, String content) {

boolean w = false;

try {

// byte b[] = content.getBytes("ISO-8859-1");

byte b[] = content.getBytes();

ByteArrayInputStream bais = new ByteArrayInputStream(b);

POIFSFileSystem fs = new POIFSFileSystem();

DirectoryEntry directory = fs.getRoot();

DocumentEntry de = directory.createDocument("WordDocument", bais);

FileOutputStream ostream = new FileOutputStream(path);

fs.writeFilesystem(ostream);

bais.close();

ostream.close();

} catch (IOException e) {

e.printStackTrace();

}

return w;

}

public static void main(String[] args){

boolean b = writeWordFile("E://test.doc","hello");

}

}

/*

public String extractText(InputStream in) throws IOException {

ArrayList text = new ArrayList();

POIFSFileSystem fsys = new POIFSFileSystem(in);

DocumentEntry headerProps = (DocumentEntry) fsys.getRoot().getEntry("WordDocument");

DocumentInputStream din = fsys.createDocumentInputStream("WordDocument");

byte[] header = new byte[headerProps.getSize()];

din.read(header);

din.close();

// Prende le informazioni dall'header del documento

int info = LittleEndian.getShort(header, 0xa);

boolean useTable1 = (info 0x200) != 0;

//boolean useTable1 = true;

// Prende informazioni dalla piece table

int complexOffset = LittleEndian.getInt(header, 0x1a2);

//int complexOffset = LittleEndian.getInt(header);

String tableName = null;

if (useTable1) {

tableName = "1Table";

} else {

tableName = "0Table";

}

DocumentEntry table = (DocumentEntry) fsys.getRoot().getEntry(tableName);

byte[] tableStream = new byte[table.getSize()];

din = fsys.createDocumentInputStream(tableName);

din.read(tableStream);

din.close();

din = null;

fsys = null;

table = null;

headerProps = null;

int multiple = findText(tableStream, complexOffset, text);

StringBuffer sb = new StringBuffer();

int size = text.size();

tableStream = null;

for (int x = 0; x size; x++) {

WordTextPiece nextPiece = (WordTextPiece) text.get(x);

int start = nextPiece.getStart();

int length = nextPiece.getLength();

boolean unicode = nextPiece.usesUnicode();

String toStr = null;

if (unicode) {

toStr = new String(header, start, length * multiple, "UTF-16LE");

} else {

toStr = new String(header, start, length, "ISO-8859-1");

}

sb.append(toStr).append(" ");

}

return sb.toString();

}

private static int findText(byte[] tableStream, int complexOffset, ArrayList text)

throws IOException {

//actual text

int pos = complexOffset;

int multiple = 2;

//skips through the prms before we reach the piece table. These contain data

//for actual fast saved files

while (tableStream[pos] == 1) {

pos++;

int skip = LittleEndian.getShort(tableStream, pos);

pos += 2 + skip;

}

if (tableStream[pos] != 2) {

throw new IOException("corrupted Word file");

} else {

//parse out the text pieces

int pieceTableSize = LittleEndian.getInt(tableStream, ++pos);

pos += 4;

int pieces = (pieceTableSize - 4) / 12;

for (int x = 0; x pieces; x++) {

int filePos =

LittleEndian.getInt(tableStream, pos + ((pieces + 1) * 4) + (x *img src="/images/forum/smiles/icon_cool.gif"/ + 2);

boolean unicode = false;

if ((filePos 0x40000000) == 0) {

unicode = true;

} else {

unicode = false;

multiple = 1;

filePos = ~(0x40000000); //gives me FC in doc stream

filePos /= 2;

}

int totLength =

LittleEndian.getInt(tableStream, pos + (x + 1) * 4)

- LittleEndian.getInt(tableStream, pos + (x * 4));

WordTextPiece piece = new WordTextPiece(filePos, totLength, unicode);

text.add(piece);

}

}

return multiple;

}

public static void main(String[] args){

WordTest w = new WordTest();

POIFSFileSystem ps = new POIFSFileSystem();

try{

File file = new File("C:\\test.doc");

InputStream in = new FileInputStream(file);

String s = w.extractText(in);

System.out.println(s);

}catch(Exception e){

e.printStackTrace();

}

}

public boolean writeWordFile(String path, String content) {

boolean w = false;

try {

// byte b[] = content.getBytes("ISO-8859-1");

byte b[] = content.getBytes();

ByteArrayInputStream bais = new ByteArrayInputStream(b);

POIFSFileSystem fs = new POIFSFileSystem();

DirectoryEntry directory = fs.getRoot();

DocumentEntry de = directory.createDocument("WordDocument", bais);

FileOutputStream ostream = new FileOutputStream(path);

fs.writeFilesystem(ostream);

bais.close();

ostream.close();

} catch (IOException e) {

e.printStackTrace();

}

return w;

}

}

class WordTextPiece {

private int _fcStart;

private boolean _usesUnicode;

private int _length;

public WordTextPiece(int start, int length, boolean unicode) {

_usesUnicode = unicode;

_length = length;

_fcStart = start;

}

public boolean usesUnicode() {

return _usesUnicode;

}

public int getStart() {

return _fcStart;

}

public int getLength() {

return _length;

}

}

*/

关于prms+java和的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。