java解析json与map,list相互之间的转换
2014-04-22 15:54
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运行这个类需要加载jar包:ezmorph-1.0.6.jar、json-lib-2.4-jdk15.jar、jsoup-1.6.1.jar、commons-beanutils-1.8.0.jar、commons-collectio.jar、commons-lang-2.4.jar、commons-logging-1.1.1.jar。
点击下载所需夹包
http://download.csdn.net/detail/weizunde/7233825
package com.jjinfo.action;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
public class TestAction {
public void sendMessage(String content) throws IOException {
HttpServletResponse response = ServletActionContext.getResponse();
response.setCharacterEncoding("UTF-8");
//response.setCharacterEncoding("GBK");
response.getWriter().write(content);
}
private static List<Map<String, String>> jsonStringToList(String rsContent) throws Exception
{
JSONArray arry = JSONArray.fromObject(rsContent);
System.out.println("json字符串内容如下");
System.out.println(arry);
List<Map<String, String>> rsList = new ArrayList<Map<String, String>>();
for (int i = 0; i < arry.size(); i++)
{
JSONObject jsonObject = arry.getJSONObject(i);
Map<String, String> map = new HashMap<String, String>();
for (Iterator<?> iter = jsonObject.keys(); iter.hasNext();)
{
String key = (String) iter.next();
String value = jsonObject.get(key).toString();
map.put(key, value);
}
rsList.add(map);
}
return rsList;
}
public String query() throws Exception{
String str="";
//获取xml,读入xml文件
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("----start----"+sdf.format(new Date()));
URL url;
url = new URL("http://star.sgst.cn/starInfoForZSCQ.do?systemName=ZSCQ&pageNum=6");
URLConnection uc = url.openConnection();
InputStream in = uc.getInputStream();
Reader rd = new InputStreamReader(in,"UTF-8");
byte[] ch=new byte[1024];
StringBuilder sb=new StringBuilder();
int c=0;
StringBuffer temp=new StringBuffer();
while ((c = rd.read()) != -1) {
temp.append((char) c);
}
in.close();
str=temp.toString();
System.out.println(temp.toString());
System.out.println("----zhong----"+sdf.format(new Date()));
List<Map<String, String>> list1 = jsonStringToList(str);
System.out.println("json字符串成map");
for (Map<String, String> m : list1)
{
System.out.println(m);
}
return null;
}
}
点击下载所需夹包
http://download.csdn.net/detail/weizunde/7233825
package com.jjinfo.action;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.apache.struts2.ServletActionContext;
public class TestAction {
public void sendMessage(String content) throws IOException {
HttpServletResponse response = ServletActionContext.getResponse();
response.setCharacterEncoding("UTF-8");
//response.setCharacterEncoding("GBK");
response.getWriter().write(content);
}
private static List<Map<String, String>> jsonStringToList(String rsContent) throws Exception
{
JSONArray arry = JSONArray.fromObject(rsContent);
System.out.println("json字符串内容如下");
System.out.println(arry);
List<Map<String, String>> rsList = new ArrayList<Map<String, String>>();
for (int i = 0; i < arry.size(); i++)
{
JSONObject jsonObject = arry.getJSONObject(i);
Map<String, String> map = new HashMap<String, String>();
for (Iterator<?> iter = jsonObject.keys(); iter.hasNext();)
{
String key = (String) iter.next();
String value = jsonObject.get(key).toString();
map.put(key, value);
}
rsList.add(map);
}
return rsList;
}
public String query() throws Exception{
String str="";
//获取xml,读入xml文件
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("----start----"+sdf.format(new Date()));
URL url;
url = new URL("http://star.sgst.cn/starInfoForZSCQ.do?systemName=ZSCQ&pageNum=6");
URLConnection uc = url.openConnection();
InputStream in = uc.getInputStream();
Reader rd = new InputStreamReader(in,"UTF-8");
byte[] ch=new byte[1024];
StringBuilder sb=new StringBuilder();
int c=0;
StringBuffer temp=new StringBuffer();
while ((c = rd.read()) != -1) {
temp.append((char) c);
}
in.close();
str=temp.toString();
System.out.println(temp.toString());
System.out.println("----zhong----"+sdf.format(new Date()));
List<Map<String, String>> list1 = jsonStringToList(str);
System.out.println("json字符串成map");
for (Map<String, String> m : list1)
{
System.out.println(m);
}
return null;
}
}
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