棣栧厛錛屾垜浠創鍑鴻皟鐢ㄦ敮浠樻帴鍙ｇ殑H5欏甸潰,褰撶劧錛屽湪榪欎釜欏甸潰涔嬪墠錛岃繕闇瑕佸仛寰堝鍏朵粬鐨勬搷浣滐紝鎴戜滑涓姝ヤ竴姝ョ殑鏉ャ?
鍧戠埞鐨勫畼鏂規枃妗ｇ粰浜嗕袱涓笉鍚岀殑鏀粯鎺ュ彛錛屽湪寰俊鍏紬騫沖彴寮鍙戜腑鏂囨。鐨勨滃井淇S-SDK璇存槑鏂囨。鈥濅腑錛岀粰鍑虹殑鏀粯鏂瑰紡鏄笅闈㈣灞忚斀鐨勯偅涓閮ㄥ垎錛岃屽湪鍟嗘埛騫沖彴鐨勨淗5璋冭搗鏀粯API鈥濅腑錛屽張緇欎簡涓浠戒笉鍚岀殑鎺ュ彛錛屽嵆涓嬮潰鏈睆钄芥甯鎬嬌鐢ㄧ殑鎺ュ彛銆傚叧浜庡潙鐖圭殑寰俊鎻愪緵浜嗕袱涓笉鍚岀殑鏀粯鎺ュ彛錛岀綉涓婃悳绱㈢粨鏋滀篃鏄紬璇寸悍綰鳳紝鎵浠ワ紝鍙湁鑷繁璇曚簡銆傚綋鐒訛紝涓轟簡綆鍗曪紝鎴戠洿鎺ヨ瘯浜嗕笅闈㈣繖涓縐嶏紝鐒跺悗濂囪抗鑸殑鎴愬姛浜嗐?
闃呰鍏ㄦ枃
]]>
package qrcode;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import jp.sourceforge.qrcode.QRCodeDecoder;
import jp.sourceforge.qrcode.exception.DecodingFailedException;
import com.swetake.util.Qrcode;
public class TwoDimensionCode {
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param imgPath 鍥劇墖璺緞
*/
public void encoderQRCode(String content, String imgPath) {
this.encoderQRCode(content, imgPath, "png", 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param output 杈撳嚭嫻?br /> */
public void encoderQRCode(String content, OutputStream output) {
this.encoderQRCode(content, output, "png", 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param imgPath 鍥劇墖璺緞
* @param imgType 鍥劇墖綾誨瀷
*/
public void encoderQRCode(String content, String imgPath, String imgType) {
this.encoderQRCode(content, imgPath, imgType, 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param output 杈撳嚭嫻?br /> * @param imgType 鍥劇墖綾誨瀷
*/
public void encoderQRCode(String content, OutputStream output, String imgType) {
this.encoderQRCode(content, output, imgType, 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param imgPath 鍥劇墖璺緞
* @param imgType 鍥劇墖綾誨瀷
* @param size 浜岀淮鐮佸昂瀵?br /> */
public void encoderQRCode(String content, String imgPath, String imgType, int size) {
try {
BufferedImage bufImg = this.qRCodeCommon(content, imgType, size);
File imgFile = new File(imgPath);
// 鐢熸垚浜岀淮鐮丵RCode鍥劇墖
ImageIO.write(bufImg, imgType, imgFile);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param output 杈撳嚭嫻?br /> * @param imgType 鍥劇墖綾誨瀷
* @param size 浜岀淮鐮佸昂瀵?br /> */
public void encoderQRCode(String content, OutputStream output, String imgType, int size) {
try {
BufferedImage bufImg = this.qRCodeCommon(content, imgType, size);
// 鐢熸垚浜岀淮鐮丵RCode鍥劇墖
ImageIO.write(bufImg, imgType, output);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖鐨勫叕鍏辨柟娉?br /> * @param content 瀛樺偍鍐呭
* @param imgType 鍥劇墖綾誨瀷
* @param size 浜岀淮鐮佸昂瀵?br /> * @return
*/
private BufferedImage qRCodeCommon(String content, String imgType, int size) {
BufferedImage bufImg = null;
try {
Qrcode qrcodeHandler = new Qrcode();
// 璁劇疆浜岀淮鐮佹帓閿欑巼錛屽彲閫塋(7%)銆丮(15%)銆丵(25%)銆丠(30%)錛屾帓閿欑巼瓚婇珮鍙瓨鍌ㄧ殑淇℃伅瓚婂皯錛屼絾瀵逛簩緇寸爜娓呮櫚搴︾殑瑕佹眰瓚婂皬
qrcodeHandler.setQrcodeErrorCorrect('M');
qrcodeHandler.setQrcodeEncodeMode('B');
// 璁劇疆璁劇疆浜岀淮鐮佸昂瀵革紝鍙栧艱寖鍥?-40錛屽艱秺澶у昂瀵歌秺澶э紝鍙瓨鍌ㄧ殑淇℃伅瓚婂ぇ
qrcodeHandler.setQrcodeVersion(size);
// 鑾峰緱鍐呭鐨勫瓧鑺傛暟緇勶紝璁劇疆緙栫爜鏍煎紡
byte[] contentBytes = content.getBytes("utf-8");
// 鍥劇墖灝哄
int imgSize = 67 + 12 * (size - 1);
bufImg = new BufferedImage(imgSize, imgSize, BufferedImage.TYPE_INT_RGB);
Graphics2D gs = bufImg.createGraphics();
// 璁劇疆鑳屾櫙棰滆壊
gs.setBackground(Color.WHITE);
gs.clearRect(0, 0, imgSize, imgSize);
// 璁懼畾鍥懼儚棰滆壊> BLACK
gs.setColor(Color.BLACK);
// 璁劇疆鍋忕Щ閲忥紝涓嶈緗彲鑳藉鑷磋В鏋愬嚭閿?/span>
int pixoff = 2;
// 杈撳嚭鍐呭> 浜岀淮鐮?/span>
if (contentBytes.length > 0 && contentBytes.length < 800) {
boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);
for (int i = 0; i < codeOut.length; i++) {
for (int j = 0; j < codeOut.length; j++) {
if (codeOut[j][i]) {
gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);
}
}
}
} else {
throw new Exception("QRCode content bytes length = " + contentBytes.length + " not in [0, 800].");
}
gs.dispose();
bufImg.flush();
} catch (Exception e) {
e.printStackTrace();
}
return bufImg;
}
/**
* 瑙ｆ瀽浜岀淮鐮侊紙QRCode錛?br /> * @param imgPath 鍥劇墖璺緞
* @return
*/
public String decoderQRCode(String imgPath) {
// QRCode 浜岀淮鐮佸浘鐗囩殑鏂囦歡
File imageFile = new File(imgPath);
BufferedImage bufImg = null;
String content = null;
try {
bufImg = ImageIO.read(imageFile);
QRCodeDecoder decoder = new QRCodeDecoder();
content = new String(decoder.decode(new TwoDimensionCodeImage(bufImg)), "utf-8");
} catch (IOException e) {
System.out.println("Error: " + e.getMessage());
e.printStackTrace();
} catch (DecodingFailedException dfe) {
System.out.println("Error: " + dfe.getMessage());
dfe.printStackTrace();
}
return content;
}
/**
* 瑙ｆ瀽浜岀淮鐮侊紙QRCode錛?br /> * @param input 杈撳叆嫻?br /> * @return
*/
public String decoderQRCode(InputStream input) {
BufferedImage bufImg = null;
String content = null;
try {
bufImg = ImageIO.read(input);
QRCodeDecoder decoder = new QRCodeDecoder();
content = new String(decoder.decode(new TwoDimensionCodeImage(bufImg)), "utf-8");
} catch (IOException e) {
System.out.println("Error: " + e.getMessage());
e.printStackTrace();
} catch (DecodingFailedException dfe) {
System.out.println("Error: " + dfe.getMessage());
dfe.printStackTrace();
}
return content;
}
public static void main(String[] args) {
String imgPath = "G:/TDDOWNLOAD/Michael_QRCode.png";
String encoderContent = "Hello 澶уぇ銆佸皬灝?welcome to QRCode!" + "\nMyblog [ http://sjsky.iteye.com ]" + "\nEMail [ sjsky007@gmail.com ]";
TwoDimensionCode handler = new TwoDimensionCode();
handler.encoderQRCode(encoderContent, imgPath, "png");
// try {
// OutputStream output = new FileOutputStream(imgPath);
// handler.encoderQRCode(content, output);
// } catch (Exception e) {
// e.printStackTrace();
// }
System.out.println("========encoder success");
String decoderContent = handler.decoderQRCode(imgPath);
System.out.println("瑙ｆ瀽緇撴灉濡備笅錛?);
System.out.println(decoderContent);
System.out.println("========decoder success!!!");
}
}
TwoDimensionCodeImage 綾伙細浜岀淮鐮佸浘鐗囧璞?/span>import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import jp.sourceforge.qrcode.QRCodeDecoder;
import jp.sourceforge.qrcode.exception.DecodingFailedException;
import com.swetake.util.Qrcode;
public class TwoDimensionCode {
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param imgPath 鍥劇墖璺緞
*/
public void encoderQRCode(String content, String imgPath) {
this.encoderQRCode(content, imgPath, "png", 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param output 杈撳嚭嫻?br /> */
public void encoderQRCode(String content, OutputStream output) {
this.encoderQRCode(content, output, "png", 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param imgPath 鍥劇墖璺緞
* @param imgType 鍥劇墖綾誨瀷
*/
public void encoderQRCode(String content, String imgPath, String imgType) {
this.encoderQRCode(content, imgPath, imgType, 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param output 杈撳嚭嫻?br /> * @param imgType 鍥劇墖綾誨瀷
*/
public void encoderQRCode(String content, OutputStream output, String imgType) {
this.encoderQRCode(content, output, imgType, 7);
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param imgPath 鍥劇墖璺緞
* @param imgType 鍥劇墖綾誨瀷
* @param size 浜岀淮鐮佸昂瀵?br /> */
public void encoderQRCode(String content, String imgPath, String imgType, int size) {
try {
BufferedImage bufImg = this.qRCodeCommon(content, imgType, size);
File imgFile = new File(imgPath);
// 鐢熸垚浜岀淮鐮丵RCode鍥劇墖
ImageIO.write(bufImg, imgType, imgFile);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖
* @param content 瀛樺偍鍐呭
* @param output 杈撳嚭嫻?br /> * @param imgType 鍥劇墖綾誨瀷
* @param size 浜岀淮鐮佸昂瀵?br /> */
public void encoderQRCode(String content, OutputStream output, String imgType, int size) {
try {
BufferedImage bufImg = this.qRCodeCommon(content, imgType, size);
// 鐢熸垚浜岀淮鐮丵RCode鍥劇墖
ImageIO.write(bufImg, imgType, output);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 鐢熸垚浜岀淮鐮?QRCode)鍥劇墖鐨勫叕鍏辨柟娉?br /> * @param content 瀛樺偍鍐呭
* @param imgType 鍥劇墖綾誨瀷
* @param size 浜岀淮鐮佸昂瀵?br /> * @return
*/
private BufferedImage qRCodeCommon(String content, String imgType, int size) {
BufferedImage bufImg = null;
try {
Qrcode qrcodeHandler = new Qrcode();
// 璁劇疆浜岀淮鐮佹帓閿欑巼錛屽彲閫塋(7%)銆丮(15%)銆丵(25%)銆丠(30%)錛屾帓閿欑巼瓚婇珮鍙瓨鍌ㄧ殑淇℃伅瓚婂皯錛屼絾瀵逛簩緇寸爜娓呮櫚搴︾殑瑕佹眰瓚婂皬
qrcodeHandler.setQrcodeErrorCorrect('M');
qrcodeHandler.setQrcodeEncodeMode('B');
// 璁劇疆璁劇疆浜岀淮鐮佸昂瀵革紝鍙栧艱寖鍥?-40錛屽艱秺澶у昂瀵歌秺澶э紝鍙瓨鍌ㄧ殑淇℃伅瓚婂ぇ
qrcodeHandler.setQrcodeVersion(size);
// 鑾峰緱鍐呭鐨勫瓧鑺傛暟緇勶紝璁劇疆緙栫爜鏍煎紡
byte[] contentBytes = content.getBytes("utf-8");
// 鍥劇墖灝哄
int imgSize = 67 + 12 * (size - 1);
bufImg = new BufferedImage(imgSize, imgSize, BufferedImage.TYPE_INT_RGB);
Graphics2D gs = bufImg.createGraphics();
// 璁劇疆鑳屾櫙棰滆壊
gs.setBackground(Color.WHITE);
gs.clearRect(0, 0, imgSize, imgSize);
// 璁懼畾鍥懼儚棰滆壊> BLACK
gs.setColor(Color.BLACK);
// 璁劇疆鍋忕Щ閲忥紝涓嶈緗彲鑳藉鑷磋В鏋愬嚭閿?/span>
int pixoff = 2;
// 杈撳嚭鍐呭> 浜岀淮鐮?/span>
if (contentBytes.length > 0 && contentBytes.length < 800) {
boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);
for (int i = 0; i < codeOut.length; i++) {
for (int j = 0; j < codeOut.length; j++) {
if (codeOut[j][i]) {
gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);
}
}
}
} else {
throw new Exception("QRCode content bytes length = " + contentBytes.length + " not in [0, 800].");
}
gs.dispose();
bufImg.flush();
} catch (Exception e) {
e.printStackTrace();
}
return bufImg;
}
/**
* 瑙ｆ瀽浜岀淮鐮侊紙QRCode錛?br /> * @param imgPath 鍥劇墖璺緞
* @return
*/
public String decoderQRCode(String imgPath) {
// QRCode 浜岀淮鐮佸浘鐗囩殑鏂囦歡
File imageFile = new File(imgPath);
BufferedImage bufImg = null;
String content = null;
try {
bufImg = ImageIO.read(imageFile);
QRCodeDecoder decoder = new QRCodeDecoder();
content = new String(decoder.decode(new TwoDimensionCodeImage(bufImg)), "utf-8");
} catch (IOException e) {
System.out.println("Error: " + e.getMessage());
e.printStackTrace();
} catch (DecodingFailedException dfe) {
System.out.println("Error: " + dfe.getMessage());
dfe.printStackTrace();
}
return content;
}
/**
* 瑙ｆ瀽浜岀淮鐮侊紙QRCode錛?br /> * @param input 杈撳叆嫻?br /> * @return
*/
public String decoderQRCode(InputStream input) {
BufferedImage bufImg = null;
String content = null;
try {
bufImg = ImageIO.read(input);
QRCodeDecoder decoder = new QRCodeDecoder();
content = new String(decoder.decode(new TwoDimensionCodeImage(bufImg)), "utf-8");
} catch (IOException e) {
System.out.println("Error: " + e.getMessage());
e.printStackTrace();
} catch (DecodingFailedException dfe) {
System.out.println("Error: " + dfe.getMessage());
dfe.printStackTrace();
}
return content;
}
public static void main(String[] args) {
String imgPath = "G:/TDDOWNLOAD/Michael_QRCode.png";
String encoderContent = "Hello 澶уぇ銆佸皬灝?welcome to QRCode!" + "\nMyblog [ http://sjsky.iteye.com ]" + "\nEMail [ sjsky007@gmail.com ]";
TwoDimensionCode handler = new TwoDimensionCode();
handler.encoderQRCode(encoderContent, imgPath, "png");
// try {
// OutputStream output = new FileOutputStream(imgPath);
// handler.encoderQRCode(content, output);
// } catch (Exception e) {
// e.printStackTrace();
// }
System.out.println("========encoder success");
String decoderContent = handler.decoderQRCode(imgPath);
System.out.println("瑙ｆ瀽緇撴灉濡備笅錛?);
System.out.println(decoderContent);
System.out.println("========decoder success!!!");
}
}
package qrcode;
import java.awt.image.BufferedImage;
import jp.sourceforge.qrcode.data.QRCodeImage;
public class TwoDimensionCodeImage implements QRCodeImage {
BufferedImage bufImg;
public TwoDimensionCodeImage(BufferedImage bufImg) {
this.bufImg = bufImg;
}
@Override
public int getHeight() {
return bufImg.getHeight();
}
@Override
public int getPixel(int x, int y) {
return bufImg.getRGB(x, y);
}
@Override
public int getWidth() {
return bufImg.getWidth();
}
}
import java.awt.image.BufferedImage;
import jp.sourceforge.qrcode.data.QRCodeImage;
public class TwoDimensionCodeImage implements QRCodeImage {
BufferedImage bufImg;
public TwoDimensionCodeImage(BufferedImage bufImg) {
this.bufImg = bufImg;
}
@Override
public int getHeight() {
return bufImg.getHeight();
}
@Override
public int getPixel(int x, int y) {
return bufImg.getRGB(x, y);
}
@Override
public int getWidth() {
return bufImg.getWidth();
}
}
]]>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
涓嬮潰鏄疛STL涓嚜甯︾殑鏂規硶鍒楄〃浠ュ強鍏舵弿榪?nbsp; 闃呰鍏ㄦ枃
]]>
浜嗚В浜嗕簩鑰呬箣闂寸殑鍖哄埆浜庡簲鐢ㄥ満鏅紝瀵筃ginx浜х敓嫻撳帤鐨勫叴瓚ｏ紝闃呰寮犲鐨?瀹炴垬Nginx>錛堣繖涓?5騫寸殑灝忎紮瀛愬勾杞繪湁涓虹盡鎱?濡掑繉錛夛紝鎼?鏄庣櫧浜嗗ぇ鑷村師鐞嗗拰閰嶇疆錛孶buntu10.10錛寃indow涓嬪Nginx+tomcat璐熻澆鍧囪 鍋氫簡閰嶇疆灝濊瘯錛屽皢鍏ㄩ儴璇鋒眰杞彂鍒皌omcat錛屽茍鏈仛 闈欐侊紝鍔ㄦ佸垎寮錛屽浘鐗囬槻鐩楅摼絳夐厤緗?nbsp; 闃呰鍏ㄦ枃
]]>
1. java.lang.OutOfMemoryError: Java heap space ----JVM Heap錛堝爢錛夋孩鍑?
JVM鍦ㄥ惎鍔ㄧ殑鏃跺欎細鑷姩璁劇疆JVM Heap鐨勫鹼紝鍏跺垵濮嬬┖闂?鍗?Xms)鏄墿鐞嗗唴瀛樼殑1/64錛屾渶澶х┖闂?-Xmx)涓嶅彲瓚呰繃鐗╃悊鍐呭瓨銆?
鍙互鍒╃敤JVM鎻愪緵鐨?Xmn -Xms -Xmx絳夐夐」鍙繘琛岃緗侶eap鐨勫ぇ灝忔槸Young Generation 鍜孴enured Generaion 涔嬪拰銆?
鍦↗VM涓鏋?8錛呯殑鏃墮棿鏄敤浜嶨C錛屼笖鍙敤鐨凥eap size 涓嶈凍2錛呯殑鏃跺欏皢鎶涘嚭姝ゅ紓甯鎬俊鎭?
瑙ｅ喅鏂規硶錛氭墜鍔ㄨ緗甁VM Heap錛堝爢錛夌殑澶у皬銆?
2. java.lang.OutOfMemoryError: PermGen space ---- PermGen space婧㈠嚭銆?
PermGen space鐨勫叏縐版槸Permanent Generation space錛屾槸鎸?nbsp; 闃呰鍏ㄦ枃
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鐒惰屼唬鐮佸紑婧愪笉浠ｈ〃鎴戜滑灝卞彲浠ュぇ澶ф柟鏂圭殑鎷挎潵灝辯敤浜嗭紝浜哄鐨勬枃妗ｄ篃鏄鏀惰垂鐨勶紝鎵浠ュ競闈笂鏈夊叧浜嶫asperReport鐨勬枃妗ｈ櫧鐒朵篃涓嶅皯錛屼絾澶у鏁伴兘闆嗕腑鍦ㄧ畝鍗曞簲鐢ㄥ拰浠嬬粛鍩烘湰鎿嶄綔鐨勫熀紜涔嬩笂銆傚浜庡鏉傜殑鎶ヨ〃璁捐騫朵笉鑳芥彁渚涜壇濂界殑甯姪銆傛湰鏂囧皢鐏姏闆嗕腑鍦ㄧ浉瀵瑰鏉傜殑鎶ヨ〃璁捐錛堜笉鍖呮嫭鍥劇墖鍜岃秴榪炴帴絳夊鍔炲叕緋葷粺鎴栬繃紼嬫病鏈夊お澶х敤閫旂殑欏甸潰鍏冪礌錛夛紝浜ゅ弶琛ㄧ殑鐢熸垚絳夐珮綰ф姤琛ㄨ璁℃柟妗堛傚浜庨偅浜涘熀鏈殑鎿嶄綔鍒欑暀緇欒鑰呰嚜琛屼綋浼氾紝鐩鎬俊鍙互涓哄悇浣嶈В鍐充竴浜涘疄闄呴棶棰樸?
闃呰鍏ㄦ枃
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JasperReport鏄竴涓姤琛ㄥ埗浣滅▼搴忥紝鐢ㄦ埛鎸夌収瀹冨埗瀹氱殑瑙勫垯緙栧啓涓涓猉ML鏂囦歡錛岀劧鍚庡緱鍒扮敤鎴烽渶瑕佽緭鍑虹殑鏍煎紡鏂囦歡銆傚畠鏀寔杈撳嚭鐨勬枃浠舵牸寮忓寘鎷琍DF錛孒TML錛孹ML錛孹LS錛孋SV絳夌瓑銆?
鐢↗asperReport鍋氭姤琛紝鍙互鍒嗕負涓ょ鏂瑰紡錛?
1銆?鐩存帴鍒╃敤紼嬪簭瀹氫箟涓涓姤琛?
2銆?鍐欎竴涓獂ml鏂囦歡鏉ユ弿榪拌繖涓姤琛紝閫氬父闇瑕佸熷姪浜巌Report
JasperReport鍋氭姤琛ㄦ椂鐢ㄧ殑閮芥槸搴曞眰鐨勪笢瑗匡紝濡傜嚎鏉°侀潤鎬佹枃鏈瓑錛屽簳灞傜殑濂藉灝辨槸寮哄ぇ銆佸鏄撴帶鍒舵姤琛紝浣嗙己鐐瑰氨鏄紪鍐欏緢楹葷儲銆傚簡騫哥殑鏄紝鎴戜滑鏈塱Report榪欎釜杞歡錛岃繖涓蔣浠跺畬鍏ㄦ槸寮ヨˉJasperReport鐨勪笉瓚籌紝灝嗗簳灞傜紪鍐欐帹鍚戝彲瑙嗗寲錛屽ぇ澶х殑鏂逛究浜嗘垜浠?
闃呰鍏ㄦ枃
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鍏堢湅浠ｇ爜 闃呰鍏ㄦ枃
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RMI錛圧emote Method Invocation錛?
涓庢湰緋誨垪灝嗕粙緇嶇殑鍏跺畠涓ょRPC緙栫▼鎺ュ彛涓嶅悓錛孯MI錛圧emote Method Invocation錛夋樉寰楁湁浜涜佹棫錛屽畠鏄湪Java-IDL鍔犲叆J2SE涔嬪墠琚紩鍏ョ殑銆俁MI寮鍙戞祦紼嬩笌CORBA濡傚嚭涓杈欙紙浠庡嚭鐜扮殑鏃墮棿涓婃棤娉曠‘瀹歊MI鏄惁鏄寜鐓ORBA瑙勮寖瀹氬埗鐨勶級錛屽洜姝わ紝鍏跺紑鍙戣繃紼嬬浉瀵規瘮杈冪儲鐞愶紝浣嗘槸鐢變簬RMI鏄疎JB鐨勫熀紜錛屽洜姝わ紝瀹冨湪Java寮鍙戜腑鍏鋒湁鍗佸垎閲嶈鐨勫湴浣嶃?
浠ヤ笅鏄垱寤鴻繙紼嬫柟娉曡皟鐢ㄧ殑5涓楠わ細
1. 瀹氫箟涓涓墿灞曚簡Remote鎺ュ彛鐨勬帴鍙ｏ紝璇ユ帴鍙ｄ腑鐨勬瘡涓涓柟娉曞繀 闃呰鍏ㄦ枃
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鎵浠ユ兂璋冩暣Tomcat鐨勫惎鍔ㄦ椂鍒濆鍐呭瓨鍜屾渶澶у唴瀛樺氨闇瑕佸悜JVM澹版槑錛屼竴鑸殑JAVA紼嬪簭鍦ㄨ繍琛岄兘鍙互閫氳繃涓?Xms -Xmx鏉ヨ皟鏁村簲鐢ㄧ▼搴忕殑鍒濆鍐呭瓨鍜屾渶澶у唴瀛?
濡傦細java -Xms64m -Xmx128m a.jar.
tomcat鐨勫惎鍔ㄧ▼搴忔槸鍖呰榪囩殑錛屼笉鑳界洿鎺ヤ嬌鐢╦ava -X..... tomcat.*鏉ユ敼鍙樺唴瀛樼殑璁劇疆銆傚湪Tomcat鍦ㄦ敼鍙樿繖涓緗?
鏈変袱縐嶆柟娉曪細
1. 閫傚悎鐢?tomcat_home%\bin涓殑startup.bat鑴氭湰鍚姩錛岄渶瑕佸湪鐜鍙橀噺涓姞涓奀ATALINA_OPTS榪欎釜灞炴?銆?
濡?SET CATALINA_OPTS= -Xms64m -Xmx512m;
ms鏄渶灝忕殑錛宮x鏄?nbsp; 闃呰鍏ㄦ枃
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1. 鏀寔綆浣撲腑鏂囧拰綣佷綋涓枃瀛楃錛?
2. 鏀寔杞崲鍒版眽璇嫾闊籌紝閫氱敤鎷奸煶, 濞佸Ε鐜涙嫾闊籌紙濞佺帥鎷兼硶錛? 娉ㄩ煶絎﹀彿絎簩寮? 鑰墮瞾鎷兼硶鍜屽浗璇綏椹瓧錛?
3. 鏀寔澶氶煶瀛楋紝鍗沖彲浠ヨ幏鍙栦竴涓腑鏂囧瓧絎︾殑澶氱鍙戦煶錛?
4. 鏀寔澶氱瀛楃涓茶緭鍑烘牸寮忥紝姣斿鏀寔Unicode鏍煎紡鐨勫瓧絎γ煎拰澹拌皟絎﹀彿(闃村鉤 "藟",闃沖鉤"藠",涓婂０"藝",鍘誨０"藡")鐨勮緭鍑恒?
涓轟簡鏂逛究澶у浣跨敤錛屾垜灝嗘簮鏂囦歡鍜宩ar鍖呬竴騫舵斁涓婃潵浜嗭紝嬈㈣繋澶у涓嬭澆銆?
搴熻瘽灝戣錛屼笅闈㈡槸鎴戝緩绔嬬殑涓涓氱敤綾伙紝鏈変粈涔堜笉瓚崇殑鍦版柟甯屾湜澶у鎸囨銆?
闃呰鍏ㄦ枃
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1銆佸鏋滅敤鈥?鈥濅綔涓哄垎闅旂殑璇濓紝蹇呴』鏄涓嬪啓娉曪細String.split("\\."),榪欐牱鎵嶈兘姝ｇ‘鐨勫垎闅斿紑錛屼笉鑳界敤String.split(".");
2銆佸鏋滅敤鈥渱鈥濅綔涓哄垎闅旂殑璇濓紝蹇呴』鏄涓嬪啓娉曪細String.split("\\|"),榪欐牱鎵嶈兘姝ｇ‘鐨勫垎闅斿紑錛屼笉鑳界敤String.split("|");鈥?鈥濆拰鈥渱鈥濋兘鏄漿涔夊瓧絎︼紝蹇呴』寰楀姞"\\";
3銆佸鏋滃湪涓涓瓧絎︿覆涓湁澶氫釜鍒嗛殧絎︼紝鍙互鐢ㄢ渱鈥濅綔涓鴻繛瀛楃錛屾瘮濡傦細鈥渁count=? and uu =? or n=?鈥?鎶婁笁涓兘鍒嗛殧鍑烘潵錛屽彲浠ョ敤String.split("and|or");浣跨敤String.split鏂規硶鍒嗛殧瀛楃涓叉椂錛屽垎闅旂濡傛灉鐢ㄥ埌涓浜涚壒孌婂瓧絎︼紝鍙兘浼氬緱涓嶅埌鎴戜滑棰勬湡鐨勭粨鏋溿? 闃呰鍏ㄦ枃
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Xml浠ｇ爜錛?
鍒欏皢璺緞閰嶇疆鍒頒簡WEB-INF/page 涓嬨?
1.2. 璁劇疆Convention鎼滅儲鍖?
榛樿鍖呰礬寰勫寘鍚玜ction,actions,struts,struts2鐨勬墍鏈夊寘閮戒細琚玸truts浣滀負鍚湁Action綾葷殑璺緞鏉ユ悳绱€備綘鍙互閫氳繃璁劇疆struts.convention.package.locators灞炴ф潵淇敼榪欎釜閰嶇疆銆傚錛?
闃呰鍏ㄦ枃
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闆嗗悎鍜屽紩鐢?
灝卞儚寮曠敤綾誨瀷鐨勬暟緇勪竴鏍鳳紝褰撴垜浠妸 Java 瀵硅薄鏀懼叆鏁扮粍涔嬫椂錛屽茍涓嶆槸鐪熸鐨勬妸 Java 瀵硅薄鏀懼叆鏁扮粍涓紝鍙槸鎶婂璞＄殑寮曠敤鏀懼叆鏁扮粍涓紝姣忎釜鏁扮粍鍏冪礌閮芥槸涓涓紩鐢ㄥ彉閲忋?
瀹為檯涓婏紝HashSet 鍜?HashMap 涔嬮棿鏈夊緢澶氱浉浼間箣澶勶紝瀵逛簬 HashSet 鑰岃█錛岀郴緇熼噰鐢?Hash 綆楁硶鍐沖畾闆嗗悎鍏冪礌鐨勫瓨鍌ㄤ綅緗紝榪欐牱鍙互淇濊瘉鑳藉揩閫熷瓨銆佸彇闆嗗悎鍏冪礌錛涘浜?HashMap 鑰岃█錛岀郴緇?key-value 褰撴垚涓涓暣浣撹繘琛屽鐞嗭紝緋葷粺鎬繪槸鏍規嵁 Hash 綆楁硶鏉ヨ綆?key-val 闃呰鍏ㄦ枃
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棣栧厛鐪嬩竴涓嬪畠浠殑鍏崇郴錛?
Collection
--List錛?----------------------浠ョ壒瀹氭搴忓瓨鍌ㄥ厓绱犮傛墍浠ュ彇鍑烘潵鐨勯『搴忓彲鑳藉拰鏀懼叆欏哄簭涓嶅悓銆?
---ArrayList
---LinkedList
---Vector
--Set 錛?---------------------- 涓嶅惈鏈夐噸澶嶇殑鍏冪礌
--- HashSet
--- TreeSet
Map
---HashMap
---HashTable
---TreeMap 闃呰鍏ㄦ枃
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浼楁墍鍛ㄧ煡錛孲pring Security閽堝Acegi鐨勪竴涓噸澶х殑鏀硅繘灝卞湪浜庡叾閰嶇疆鏂瑰紡澶уぇ綆鍖栦簡銆傛墍浠ュ鏋滈厤緗繕鏄熀浜嶢cegi-1.X榪欐牱姣旇緝綣佺悙鐨勯厤緗柟寮忕殑璇濓紝閭ｄ箞鎴戜滑榪樹笉濡傜洿鎺ヤ嬌鐢ˋcegi鑰屼笉瑕佸幓鍗囩駭浜嗐傛墍浠ュ湪榪欓噷錛屾垜灝嗙粨鍚堜竴涓ず渚嬶紝閲嶇偣璁ㄨ涓涓婼pring Security 2鏄浣曡繘琛岄厤緗畝鍖栫殑銆?
鎼緩鍩虹鐜
棣栧厛鎴戜滑涓虹ず渚嬫惌寤哄熀鏈殑寮鍙戠幆澧冿紝鐜鐨勬惌寤烘柟寮忥紝鍙互鍙傝冩垜鐨勫彟澶栦竴綃囨枃绔狅細http://www.javaeye.com/wiki/struts2/1321-struts2-development-environment-to-build 闃呰鍏ㄦ枃
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/**
* @param args
*/
public static void main(String[] args) {
/*
* 澶囦喚鍜屽鍏ユ槸涓涓簰閫嗙殑榪囩▼銆?
* 澶囦喚錛氱▼搴忚皟鐢╩ysql鐨勫浠藉懡浠わ紝璇誨嚭鎺у埗鍙拌緭鍏ユ祦淇℃伅錛屽啓鍏?sql鏂囦歡錛?
* 瀵煎叆錛氱▼搴忚皟鐢╩ysql鐨勫鍏ュ懡浠わ紝鎶婁粠.sql鏂囦歡涓鍑虹殑淇℃伅鍐欏叆鎺у埗鍙扮殑杈撳嚭嫻?
* 娉ㄦ剰錛氭鏃跺畾鍚戠">"鍜?<"鏄笉鑳界敤鐨?
*/
backup();
load();
}
闃呰鍏ㄦ枃
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娉ㄦ槑錛氬鏋滀粠ANT鍚姩紼嬪簭錛宼his.getClass().getResource("")鍙栧嚭鏉ョ殑姣旇緝鎬紝鐩存帴鐢↗AVA鍛戒護琛岃皟璇曞氨鍙垚鍔熴?
銆
寰楀埌classpath鍜屽綋鍓嶇被鐨勭粷瀵硅礬寰勭殑涓浜涙柟娉?
鑾峰緱CLASSPATH涔嬪璺緞鐨勬柟娉曪細
URL base = this.getClass().getResource(""); //鍏堣幏寰楁湰綾葷殑鎵鍦ㄤ綅緗紝濡?home/popeye/testjava/build/classes/net/
String path = new File(base.getFile(), "../../../"+name).getCanonicalPath(); //灝卞彲浠ュ緱鍒?home/popeye/testjava/name 闃呰鍏ㄦ枃
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