📄 json 入门指南.mht
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<TR>
<TD class=3Dcode-outline><PRE class=3Ddisplaycode>=20
public static String toJson(Object o) {=20
if (o=3D=3Dnull)=20
return "null";=20
if (o instanceof String)=20
return string2Json((String)o);=20
if (o instanceof Boolean)=20
return boolean2Json((Boolean)o);=20
if (o instanceof Number)=20
return number2Json((Number)o);=20
if (o instanceof Map)=20
return map2Json((Map<String, Object>)o);=20
if (o instanceof Object[])=20
return array2Json((Object[])o);=20
throw new RuntimeException("Unsupported type: " + =
o.getClass().getName());=20
}=20
</PRE></TD></TR></TBODY></TABLE><BR>
<P>=E6=88=91=E4=BB=AC=E5=B9=B6=E6=9C=AA=E5=AF=B9 Java =
=E5=AF=B9=E8=B1=A1=E4=BD=9C=E4=B8=A5=E6=A0=BC=E7=9A=84=E6=A3=80=E6=9F=A5=E3=
=80=82=E4=B8=8D=E8=A2=AB=E6=94=AF=E6=8C=81=E7=9A=84=E5=AF=B9=E8=B1=A1=EF=BC=
=88=E4=BE=8B=E5=A6=82 =
List=EF=BC=89=E5=B0=86=E7=9B=B4=E6=8E=A5=E6=8A=9B=E5=87=BA =
RuntimeException=20
=
=E3=80=82=E6=AD=A4=E5=A4=96=EF=BC=8C=E4=B8=BA=E4=BA=86=E4=BF=9D=E8=AF=81=E8=
=BE=93=E5=87=BA=E7=9A=84 JSON =
=E6=98=AF=E6=9C=89=E6=95=88=E7=9A=84=EF=BC=8C<CODE>Map<String, =
Object></CODE> =E5=AF=B9=E8=B1=A1=E7=9A=84 Key=20
=
=E4=B9=9F=E4=B8=8D=E8=83=BD=E5=8C=85=E5=90=AB=E7=89=B9=E6=AE=8A=E5=AD=97=E7=
=AC=A6=E3=80=82=E7=BB=86=E5=BF=83=E7=9A=84=E8=AF=BB=E8=80=85=E5=8F=AF=E8=83=
=BD=E8=BF=98=E4=BC=9A=E5=8F=91=E7=8E=B0=E5=BE=AA=E7=8E=AF=E5=BC=95=E7=94=A8=
=E7=9A=84=E5=AF=B9=E8=B1=A1=E4=BC=9A=E5=BC=95=E5=8F=91=E6=97=A0=E9=99=90=E9=
=80=92=E5=BD=92=EF=BC=8C=E4=BE=8B=E5=A6=82=EF=BC=8C=E7=B2=BE=E5=BF=83=E6=9E=
=84=E9=80=A0=E4=B8=80=E4=B8=AA=E5=BE=AA=E7=8E=AF=E5=BC=95=E7=94=A8=E7=9A=84=
Map=EF=BC=8C=E5=B0=B1=E5=8F=AF=E4=BB=A5=E6=A3=80=E6=B5=8B=E5=88=B0=20
<CODE>StackOverflowException</CODE>=EF=BC=9A</P>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" =
border=3D0>
<TBODY>
<TR>
<TD class=3Dcode-outline><PRE class=3Ddisplaycode>=20
@Test(expected=3DStackOverflowError.class)=20
public void testRecurrsiveMap2Json() {=20
Map<String, Object> map =3D new HashMap<String, =
Object>();=20
map.put("key", map);=20
JsonUtil.map2Json(map);=20
}=20
</PRE></TD></TR></TBODY></TABLE><BR>
=
<P>=E5=A5=BD=E5=9C=A8=E6=9C=8D=E5=8A=A1=E5=99=A8=E5=A4=84=E7=90=86=E7=9A=84=
JSON =
=E6=95=B0=E6=8D=AE=E6=9C=80=E7=BB=88=E9=83=BD=E5=BA=94=E8=AF=A5=E8=BD=AC=E5=
=8C=96=E4=B8=BA=E7=AE=80=E5=8D=95=E7=9A=84 JavaScript =
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=BC=95=E7=94=A8=E7=9A=84=E5=8F=AF=E8=83=BD=E6=80=A7=E5=BE=88=E5=B0=8F=E3=80=
=82 </P>
<P>=E6=9C=80=E5=90=8E=EF=BC=8C=E9=80=9A=E8=BF=87 Servlet =
=E6=88=96 MVC =E6=A1=86=E6=9E=B6=E8=BE=93=E5=87=BA JSON =
=E6=97=B6=EF=BC=8C=E9=9C=80=E8=A6=81=E8=AE=BE=E7=BD=AE=E6=AD=A3=E7=A1=AE=E7=
=9A=84 MIME=20
=
=E7=B1=BB=E5=9E=8B=EF=BC=88application/json=EF=BC=89=E5=92=8C=E5=AD=97=E7=
=AC=A6=E7=BC=96=E7=A0=81=E3=80=82=E5=81=87=E5=AE=9A=E6=9C=8D=E5=8A=A1=E5=99=
=A8=E4=BD=BF=E7=94=A8 UTF-8 =
=E7=BC=96=E7=A0=81=EF=BC=8C=E5=88=99=E5=8F=AF=E4=BB=A5=E4=BD=BF=E7=94=A8=E4=
=BB=A5=E4=B8=8B=E4=BB=A3=E7=A0=81=E8=BE=93=E5=87=BA=E7=BC=96=E7=A0=81=E5=90=
=8E=E7=9A=84 JSON=20
=E6=96=87=E6=9C=AC=EF=BC=9A</P>
<TABLE cellSpacing=3D0 cellPadding=3D0 width=3D"100%" =
border=3D0>
<TBODY>
<TR>
<TD class=3Dcode-outline><PRE class=3Ddisplaycode>=20
response.setContentType("application/json;charset=3DUTF-8");=20
response.setCharacterEncoding("UTF-8");=20
PrintWriter pw =3D response.getWriter();=20
pw.write(JsonUtil.toJson(obj));=20
pw.flush();=20
</PRE></TD></TR></TBODY></TABLE><BR>
<P><A name=3DN10193><SPAN class=3Datitle>=E5=B0=8F=E7=BB=93 =
</SPAN></A></P>
<P>JSON =E5=B7=B2=E7=BB=8F=E6=98=AF JavaScript =
=E6=A0=87=E5=87=86=E7=9A=84=E4=B8=80=E9=83=A8=E5=88=86=E3=80=82=E7=9B=AE=E5=
=89=8D=EF=BC=8C=E4=B8=BB=E6=B5=81=E7=9A=84=E6=B5=8F=E8=A7=88=E5=99=A8=E5=AF=
=B9 JSON =
=E6=94=AF=E6=8C=81=E9=83=BD=E9=9D=9E=E5=B8=B8=E5=AE=8C=E5=96=84=E3=80=82=E5=
=BA=94=E7=94=A8 =
JSON=EF=BC=8C=E6=88=91=E4=BB=AC=E5=8F=AF=E4=BB=A5=E4=BB=8E=20
XML =
=E7=9A=84=E8=A7=A3=E6=9E=90=E4=B8=AD=E6=91=86=E8=84=B1=E5=87=BA=E6=9D=A5=EF=
=BC=8C=E5=AF=B9=E9=82=A3=E4=BA=9B=E5=BA=94=E7=94=A8 Ajax =E7=9A=84 Web =
2.0 =E7=BD=91=E7=AB=99=E6=9D=A5=E8=AF=B4=EF=BC=8CJSON =
=E7=A1=AE=E5=AE=9E=E6=98=AF=E7=9B=AE=E5=89=8D=E6=9C=80=E7=81=B5=E6=B4=BB=E7=
=9A=84=E8=BD=BB=E9=87=8F=E7=BA=A7=E6=96=B9=E6=A1=88=E3=80=82=20
</P><BR><BR>
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<TD vAlign=3Dtop align=3Dright><A class=3Dfbox=20
=
href=3D"http://www.ibm.com/developerworks/cn/web/wa-lo-json/#main"><B>=E5=
=9B=9E=E9=A1=B5=E9=A6=96</B></A></TD></TR></TBODY></TABLE></TD></TR></TBO=
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scope=3Dcol>=E4=B8=8B=E8=BD=BD=E6=96=B9=E6=B3=95</TH></TR>
<TR>
<TH class=3Dtb-row =
scope=3Drow>=E6=9C=AC=E6=96=87=E5=AE=8C=E6=95=B4=E7=9A=84=E6=BA=90=E4=BB=A3=
=E7=A0=81</TH>
<TD noWrap>jeedev-util.zip</TD>
<TD noWrap>90 KB</TD>
<TD noWrap><A class=3Dfbox=20
=
href=3D"http://javaeedev.googlecode.com/files/jeedev-util.zip"><B>HTTP</B=
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