首次创建项目

.classpath

+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7">
+		<attributes>
+			<attribute name="owner.project.facets" value="java"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.web.container"/>
+	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
+	<classpathentry kind="con" path="org.eclipse.jst.server.core.container/org.eclipse.jst.server.tomcat.runtimeTarget/Apache Tomcat v8.0"/>
+	<classpathentry kind="output" path="build/classes"/>
+</classpath>

.gitignore

+/build/

.project

+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Test1</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.common.project.facet.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
+		<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
+		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+	</natures>
+</projectDescription>

.settings/.jsdtscope

+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="WebContent"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.WebProject">
+		<attributes>
+			<attribute name="hide" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
+	<classpathentry kind="output" path=""/>
+</classpath>

.settings/org.eclipse.core.resources.prefs

+eclipse.preferences.version=1
+encoding//src/Test2.java=UTF-8

.settings/org.eclipse.jdt.core.prefs

+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.compliance=1.7
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.7

.settings/org.eclipse.wst.common.component

+<?xml version="1.0" encoding="UTF-8"?><project-modules id="moduleCoreId" project-version="1.5.0">
+    <wb-module deploy-name="Test1">
+        <wb-resource deploy-path="/" source-path="/WebContent" tag="defaultRootSource"/>
+        <wb-resource deploy-path="/WEB-INF/classes" source-path="/src"/>
+        <property name="context-root" value="Test1"/>
+        <property name="java-output-path" value="/Test1/build/classes"/>
+    </wb-module>
+</project-modules>

.settings/org.eclipse.wst.common.project.facet.core.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <fixed facet="wst.jsdt.web"/>
+  <fixed facet="java"/>
+  <fixed facet="jst.web"/>
+  <installed facet="java" version="1.7"/>
+  <installed facet="jst.web" version="3.0"/>
+  <installed facet="wst.jsdt.web" version="1.0"/>
+</faceted-project>

.settings/org.eclipse.wst.jsdt.ui.superType.container

+org.eclipse.wst.jsdt.launching.baseBrowserLibrary
\ No newline at end of file

.settings/org.eclipse.wst.jsdt.ui.superType.name

+Window
\ No newline at end of file

WebContent/META-INF/MANIFEST.MF

+Manifest-Version: 1.0
+Class-Path: 
+

WebContent/WEB-INF/web.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
+  <display-name>Test1</display-name>
+  <welcome-file-list>
+    <welcome-file>index.html</welcome-file>
+    <welcome-file>index.htm</welcome-file>
+    <welcome-file>index.jsp</welcome-file>
+    <welcome-file>default.html</welcome-file>
+    <welcome-file>default.htm</welcome-file>
+    <welcome-file>default.jsp</welcome-file>
+  </welcome-file-list>
+</web-app>
\ No newline at end of file

WebContent/index.jsp

+<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
+    pageEncoding="ISO-8859-1"%>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>Insert title here</title>
+</head>
+<body>
+Hi
+</body>
+</html>
\ No newline at end of file

src/HttpUtil.java

+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import javax.xml.soap.Name;
+
+import org.apache.http.HttpEntity;
+import org.apache.http.NameValuePair;
+import org.apache.http.ParseException;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.util.EntityUtils;
+
+public class HttpUtil {
+
+	
+	
+	public static void main(String[] args) throws ParseException, IOException {  
+	    String url="http://php.weather.sina.com.cn/iframe/index/w_cl.php";  
+	    Map<String, String> map = new HashMap<String, String>();  
+	    map.put("code", "js");  
+	    map.put("day", "0");  
+	    map.put("city", "上海");  
+	    map.put("dfc", "1");  
+	    map.put("charset", "utf-8");  
+	    String body = httpPost(url, map,"utf-8");  
+	    System.out.println("交易响应结果：");  
+	    System.out.println(body);  
+	  
+	    System.out.println("-----------------------------------");  
+	  
+	    map.put("city", "北京");  
+	    body = send(url, map, "utf-8");  
+	    System.out.println("交易响应结果：");  
+	    System.out.println(body);  
+	}  
+	
+	
+	//post请求
+	
+	public static String httpPost(String url,Map<String,String> map,String encoding) throws UnsupportedEncodingException{
+        String body = "";  
+
+		CloseableHttpClient client=HttpClients.createDefault();
+		HttpPost httpPost = new  HttpPost(url);
+		
+		List<NameValuePair> nvps= new ArrayList<NameValuePair>();
+		//参数赋值
+		if(map!=null){
+            for (Entry<String, String> entry : map.entrySet()) {  
+            		nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
+			}
+		}
+		
+		httpPost.setEntity(new UrlEncodedFormEntity(nvps,encoding));
+		
+		System.out.println("请求地址:"+url);
+		System.out.println("请求参数:"+nvps.toString());
+		httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");  
+	    httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");  
+	    try {
+	    	CloseableHttpResponse response=client.execute(httpPost);
+	    	HttpEntity entity=response.getEntity();
+	    	if(entity!=null){
+	    		body=EntityUtils.toString(entity, encoding);
+	    	}
+	    	//关闭httpEntiy流
+	    	EntityUtils.consume(entity);
+	    	response.close();
+		} catch (ClientProtocolException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}  
+		return body;
+	}
+	
+	 
+	 /** 
+     * 模拟请求 
+     *  
+     * @param url       资源地址 
+     * @param map   参数列表 
+     * @param encoding  编码 
+     * @return 
+     * @throws ParseException 
+     * @throws IOException 
+     */  
+    public static String send(String url, Map<String,String> map,String encoding) throws ParseException, IOException{  
+        String body = "";  
+  
+        //创建httpclient对象  
+        CloseableHttpClient client = HttpClients.createDefault();  
+        //创建post方式请求对象  
+        HttpPost httpPost = new HttpPost(url);  
+          
+        //装填参数  
+        List<NameValuePair> nvps = new ArrayList<NameValuePair>();  
+        if(map!=null){  
+            for (Entry<String, String> entry : map.entrySet()) {  
+                nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));  
+            }  
+        }  
+        //设置参数到请求对象中  
+        httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding));  
+  
+        System.out.println("请求地址："+url);  
+        System.out.println("请求参数："+nvps.toString());  
+          
+        //设置header信息  
+        //指定报文头【Content-type】、【User-Agent】  
+        httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");  
+        httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");  
+          
+        //执行请求操作，并拿到结果（同步阻塞）  
+        CloseableHttpResponse response = client.execute(httpPost);  
+        //获取结果实体  
+        HttpEntity entity = response.getEntity();  
+        if (entity != null) {  
+            //按指定编码转换结果实体为String类型  
+            body = EntityUtils.toString(entity, encoding);  
+        }  
+        EntityUtils.consume(entity);  
+        //释放链接  
+        response.close();  
+        return body;  
+    }  
+    
+    
+    
+    
+    
+    
+    
+    
+    
+    
+    
+    
+}

src/Sjhr.java

+
+public interface Sjhr {
+
+}

src/Test.java

+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class Test {
+	
+	public static void main(String[] args)  {
+		test1();
+	}
+	public static void test1(){
+		String param="1225sddfh";
+		System.out.println(param.substring(0,1));
+		int s=param.length();
+		System.out.println(s);
+	}
+	
+	
+	public static void reader() throws IOException{
+		File fileName=new File("D:\\test.txt");
+		try {
+			fileName.createNewFile();
+			BufferedWriter bWriter=new BufferedWriter(new FileWriter(fileName));
+			bWriter.write("哈哈哈哈");
+			bWriter.flush();
+			bWriter.close();
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		
+		
+		 InputStreamReader reader = new InputStreamReader(  
+                 new FileInputStream(fileName)); // 建立一个输入流对象reader  
+         BufferedReader br = new BufferedReader(reader); // 建立一个对象，它把文件内容转成计算机能读懂的语言  
+         String line = "";  
+         line = br.readLine();   
+         while (line != null) {  
+             line = br.readLine(); // 一次读入一行数据  
+         }  
+         System.out.println(line);
+	}
+
+}

src/Test2.java

+
+public class Test2 {
+	public static void main(String args[]){
+		Example ex=new Example(); 
+		ex.change(ex.str,ex.ch);
+		System.out.print(ex.str+"and");
+		System.out.print(ex.ch);
+	} 
+	public void change(String str,char ch[])
+	{
+		str="test ok"; 
+		String s="g"; 
+	} 
+	}
+}